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Finding the Fourth Proportional to 60,068.43, 90,159.12 and 30,507.48

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Solution

The fourth proportional to 60,068.43, 90,159.12 and 30,507.48 is: 45,789.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,068.43 : 90,159.12 = 30,507.48 : x
  2. Step 2: Convert to fraction form
    60,068.43/90,159.12 = 30,507.48/x
  3. Step 3: Cross multiply
    60,068.43x = 90,159.12 × 30,507.48
  4. Step 4: Simplify right side
    60,068.43x = 2,750,527,550.22
  5. Step 5: Solve for x
    x = 2,750,527,550.22/60,068.43
  6. Step 6: Final answer
    x = 45,789.90

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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.