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Finding the Fourth Proportional to 100,841.76, 151,330.68 and 75,900.24

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Solution

The fourth proportional to 100,841.76, 151,330.68 and 75,900.24 is: 113,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,841.76 : 151,330.68 = 75,900.24 : x
  2. Step 2: Convert to fraction form
    100,841.76/151,330.68 = 75,900.24/x
  3. Step 3: Cross multiply
    100,841.76x = 151,330.68 × 75,900.24
  4. Step 4: Simplify right side
    100,841.76x = 11,486,034,931.36
  5. Step 5: Solve for x
    x = 11,486,034,931.36/100,841.76
  6. Step 6: Final answer
    x = 113,901.57

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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.