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Finding the Fourth Proportional to 103,543.52, 155,470.80 and 59,220.32

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Solution

The fourth proportional to 103,543.52, 155,470.80 and 59,220.32 is: 88,919.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,543.52 : 155,470.80 = 59,220.32 : x
  2. Step 2: Convert to fraction form
    103,543.52/155,470.80 = 59,220.32/x
  3. Step 3: Cross multiply
    103,543.52x = 155,470.80 × 59,220.32
  4. Step 4: Simplify right side
    103,543.52x = 9,207,030,526.66
  5. Step 5: Solve for x
    x = 9,207,030,526.66/103,543.52
  6. Step 6: Final answer
    x = 88,919.43

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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.