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Finding the Fourth Proportional to 75,079.55, 112,500.77 and 60,970.92

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Solution

The fourth proportional to 75,079.55, 112,500.77 and 60,970.92 is: 91,360.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,079.55 : 112,500.77 = 60,970.92 : x
  2. Step 2: Convert to fraction form
    75,079.55/112,500.77 = 60,970.92/x
  3. Step 3: Cross multiply
    75,079.55x = 112,500.77 × 60,970.92
  4. Step 4: Simplify right side
    75,079.55x = 6,859,275,142.75
  5. Step 5: Solve for x
    x = 6,859,275,142.75/75,079.55
  6. Step 6: Final answer
    x = 91,360.11

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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.