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Finding the Fourth Proportional to 90,497.40, 135,799.02 and 37,902.48

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Solution

The fourth proportional to 90,497.40, 135,799.02 and 37,902.48 is: 56,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.40 : 135,799.02 = 37,902.48 : x
  2. Step 2: Convert to fraction form
    90,497.40/135,799.02 = 37,902.48/x
  3. Step 3: Cross multiply
    90,497.40x = 135,799.02 × 37,902.48
  4. Step 4: Simplify right side
    90,497.40x = 5,147,119,639.57
  5. Step 5: Solve for x
    x = 5,147,119,639.57/90,497.40
  6. Step 6: Final answer
    x = 56,875.88

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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.