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Finding the Fourth Proportional to 532,816.10, 799,187.70 and 172,981.70

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Solution

The fourth proportional to 532,816.10, 799,187.70 and 172,981.70 is: 259,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,816.10 : 799,187.70 = 172,981.70 : x
  2. Step 2: Convert to fraction form
    532,816.10/799,187.70 = 172,981.70/x
  3. Step 3: Cross multiply
    532,816.10x = 799,187.70 × 172,981.70
  4. Step 4: Simplify right side
    532,816.10x = 138,244,846,965.09
  5. Step 5: Solve for x
    x = 138,244,846,965.09/532,816.10
  6. Step 6: Final answer
    x = 259,460.72

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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.