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Finding the Fourth Proportional to 75,220.62, 112,831.65 and 35,781.66

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Solution

The fourth proportional to 75,220.62, 112,831.65 and 35,781.66 is: 53,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,220.62 : 112,831.65 = 35,781.66 : x
  2. Step 2: Convert to fraction form
    75,220.62/112,831.65 = 35,781.66/x
  3. Step 3: Cross multiply
    75,220.62x = 112,831.65 × 35,781.66
  4. Step 4: Simplify right side
    75,220.62x = 4,037,303,737.54
  5. Step 5: Solve for x
    x = 4,037,303,737.54/75,220.62
  6. Step 6: Final answer
    x = 53,672.83

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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.