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Finding the Fourth Proportional to 317,131.56, 437,654.76 and 173,897.04

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Solution

The fourth proportional to 317,131.56, 437,654.76 and 173,897.04 is: 239,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,131.56 : 437,654.76 = 173,897.04 : x
  2. Step 2: Convert to fraction form
    317,131.56/437,654.76 = 173,897.04/x
  3. Step 3: Cross multiply
    317,131.56x = 437,654.76 × 173,897.04
  4. Step 4: Simplify right side
    317,131.56x = 76,106,867,305.91
  5. Step 5: Solve for x
    x = 76,106,867,305.91/317,131.56
  6. Step 6: Final answer
    x = 239,985.16

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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.