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Finding the Fourth Proportional to 435,760.54, 653,641.33 and 136,242.69

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Solution

The fourth proportional to 435,760.54, 653,641.33 and 136,242.69 is: 204,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,760.54 : 653,641.33 = 136,242.69 : x
  2. Step 2: Convert to fraction form
    435,760.54/653,641.33 = 136,242.69/x
  3. Step 3: Cross multiply
    435,760.54x = 653,641.33 × 136,242.69
  4. Step 4: Simplify right side
    435,760.54x = 89,053,852,413.16
  5. Step 5: Solve for x
    x = 89,053,852,413.16/435,760.54
  6. Step 6: Final answer
    x = 204,364.20

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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.