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Finding the Fourth Proportional to 120,695.65, 180,752.07 and 60,534.92

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Solution

The fourth proportional to 120,695.65, 180,752.07 and 60,534.92 is: 90,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,695.65 : 180,752.07 = 60,534.92 : x
  2. Step 2: Convert to fraction form
    120,695.65/180,752.07 = 60,534.92/x
  3. Step 3: Cross multiply
    120,695.65x = 180,752.07 × 60,534.92
  4. Step 4: Simplify right side
    120,695.65x = 10,941,812,097.28
  5. Step 5: Solve for x
    x = 10,941,812,097.28/120,695.65
  6. Step 6: Final answer
    x = 90,656.23

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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.