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Finding the Fourth Proportional to 266,194.87, 398,655.74 and 153,533.54

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Solution

The fourth proportional to 266,194.87, 398,655.74 and 153,533.54 is: 229,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,194.87 : 398,655.74 = 153,533.54 : x
  2. Step 2: Convert to fraction form
    266,194.87/398,655.74 = 153,533.54/x
  3. Step 3: Cross multiply
    266,194.87x = 398,655.74 × 153,533.54
  4. Step 4: Simplify right side
    266,194.87x = 61,207,028,383.99
  5. Step 5: Solve for x
    x = 61,207,028,383.99/266,194.87
  6. Step 6: Final answer
    x = 229,933.16

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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.