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Finding the Fourth Proportional to 350,449.73, 525,718.35 and 137,190.11

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Solution

The fourth proportional to 350,449.73, 525,718.35 and 137,190.11 is: 205,802.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,449.73 : 525,718.35 = 137,190.11 : x
  2. Step 2: Convert to fraction form
    350,449.73/525,718.35 = 137,190.11/x
  3. Step 3: Cross multiply
    350,449.73x = 525,718.35 × 137,190.11
  4. Step 4: Simplify right side
    350,449.73x = 72,123,358,265.52
  5. Step 5: Solve for x
    x = 72,123,358,265.52/350,449.73
  6. Step 6: Final answer
    x = 205,802.29

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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.