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Finding the Fourth Proportional to 317,061.60, 475,657.20 and 106,720.80

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Solution

The fourth proportional to 317,061.60, 475,657.20 and 106,720.80 is: 160,103.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,061.60 : 475,657.20 = 106,720.80 : x
  2. Step 2: Convert to fraction form
    317,061.60/475,657.20 = 106,720.80/x
  3. Step 3: Cross multiply
    317,061.60x = 475,657.20 × 106,720.80
  4. Step 4: Simplify right side
    317,061.60x = 50,762,516,909.76
  5. Step 5: Solve for x
    x = 50,762,516,909.76/317,061.60
  6. Step 6: Final answer
    x = 160,103.01

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1.5x scale

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.