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Finding the Fourth Proportional to 123,199.49, 170,014.47 and 69,484.97

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Solution

The fourth proportional to 123,199.49, 170,014.47 and 69,484.97 is: 95,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,199.49 : 170,014.47 = 69,484.97 : x
  2. Step 2: Convert to fraction form
    123,199.49/170,014.47 = 69,484.97/x
  3. Step 3: Cross multiply
    123,199.49x = 170,014.47 × 69,484.97
  4. Step 4: Simplify right side
    123,199.49x = 11,813,450,347.52
  5. Step 5: Solve for x
    x = 11,813,450,347.52/123,199.49
  6. Step 6: Final answer
    x = 95,888.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.