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Finding the Fourth Proportional to 317,754.29, 476,630.98 and 81,096.95

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Solution

The fourth proportional to 317,754.29, 476,630.98 and 81,096.95 is: 121,645.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,754.29 : 476,630.98 = 81,096.95 : x
  2. Step 2: Convert to fraction form
    317,754.29/476,630.98 = 81,096.95/x
  3. Step 3: Cross multiply
    317,754.29x = 476,630.98 × 81,096.95
  4. Step 4: Simplify right side
    317,754.29x = 38,653,319,742.35
  5. Step 5: Solve for x
    x = 38,653,319,742.35/317,754.29
  6. Step 6: Final answer
    x = 121,645.31

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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.