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Finding the Fourth Proportional to 532,715.10, 799,036.20 and 172,880.70

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Solution

The fourth proportional to 532,715.10, 799,036.20 and 172,880.70 is: 259,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,715.10 : 799,036.20 = 172,880.70 : x
  2. Step 2: Convert to fraction form
    532,715.10/799,036.20 = 172,880.70/x
  3. Step 3: Cross multiply
    532,715.10x = 799,036.20 × 172,880.70
  4. Step 4: Simplify right side
    532,715.10x = 138,137,937,581.34
  5. Step 5: Solve for x
    x = 138,137,937,581.34/532,715.10
  6. Step 6: Final answer
    x = 259,309.22

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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.