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Finding the Fourth Proportional to 317,909.85, 476,845.46 and 112,754.67

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Solution

The fourth proportional to 317,909.85, 476,845.46 and 112,754.67 is: 169,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,909.85 : 476,845.46 = 112,754.67 : x
  2. Step 2: Convert to fraction form
    317,909.85/476,845.46 = 112,754.67/x
  3. Step 3: Cross multiply
    317,909.85x = 476,845.46 × 112,754.67
  4. Step 4: Simplify right side
    317,909.85x = 53,766,551,009.30
  5. Step 5: Solve for x
    x = 53,766,551,009.30/317,909.85
  6. Step 6: Final answer
    x = 169,125.15

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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.