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Finding the Fourth Proportional to 317,125.50, 437,646.42 and 173,891.04

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Solution

The fourth proportional to 317,125.50, 437,646.42 and 173,891.04 is: 239,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,125.50 : 437,646.42 = 173,891.04 : x
  2. Step 2: Convert to fraction form
    317,125.50/437,646.42 = 173,891.04/x
  3. Step 3: Cross multiply
    317,125.50x = 437,646.42 × 173,891.04
  4. Step 4: Simplify right side
    317,125.50x = 76,102,791,126.08
  5. Step 5: Solve for x
    x = 76,102,791,126.08/317,125.50
  6. Step 6: Final answer
    x = 239,976.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.