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Finding the Fourth Proportional to 516,123.93, 774,185.90 and 161,168.37

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Solution

The fourth proportional to 516,123.93, 774,185.90 and 161,168.37 is: 241,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,123.93 : 774,185.90 = 161,168.37 : x
  2. Step 2: Convert to fraction form
    516,123.93/774,185.90 = 161,168.37/x
  3. Step 3: Cross multiply
    516,123.93x = 774,185.90 × 161,168.37
  4. Step 4: Simplify right side
    516,123.93x = 124,774,278,774.14
  5. Step 5: Solve for x
    x = 124,774,278,774.14/516,123.93
  6. Step 6: Final answer
    x = 241,752.56

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.