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Finding the Fourth Proportional to 150,124.96, 224,738.72 and 90,781.12

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Solution

The fourth proportional to 150,124.96, 224,738.72 and 90,781.12 is: 135,900.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,124.96 : 224,738.72 = 90,781.12 : x
  2. Step 2: Convert to fraction form
    150,124.96/224,738.72 = 90,781.12/x
  3. Step 3: Cross multiply
    150,124.96x = 224,738.72 × 90,781.12
  4. Step 4: Simplify right side
    150,124.96x = 20,402,032,708.97
  5. Step 5: Solve for x
    x = 20,402,032,708.97/150,124.96
  6. Step 6: Final answer
    x = 135,900.34

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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.