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Finding the Fourth Proportional to 155,899.20, 233,503.20 and 93,691.20

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Solution

The fourth proportional to 155,899.20, 233,503.20 and 93,691.20 is: 140,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,899.20 : 233,503.20 = 93,691.20 : x
  2. Step 2: Convert to fraction form
    155,899.20/233,503.20 = 93,691.20/x
  3. Step 3: Cross multiply
    155,899.20x = 233,503.20 × 93,691.20
  4. Step 4: Simplify right side
    155,899.20x = 21,877,195,011.84
  5. Step 5: Solve for x
    x = 21,877,195,011.84/155,899.20
  6. Step 6: Final answer
    x = 140,329.10

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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.