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Finding the Fourth Proportional to 352,925.20, 529,387.80 and 187,037.20

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Solution

The fourth proportional to 352,925.20, 529,387.80 and 187,037.20 is: 280,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,925.20 : 529,387.80 = 187,037.20 : x
  2. Step 2: Convert to fraction form
    352,925.20/529,387.80 = 187,037.20/x
  3. Step 3: Cross multiply
    352,925.20x = 529,387.80 × 187,037.20
  4. Step 4: Simplify right side
    352,925.20x = 99,015,211,826.16
  5. Step 5: Solve for x
    x = 99,015,211,826.16/352,925.20
  6. Step 6: Final answer
    x = 280,555.80

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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.