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Finding the Fourth Proportional to 99,572.89, 149,359.34 and 29,446.74

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Solution

The fourth proportional to 99,572.89, 149,359.34 and 29,446.74 is: 44,170.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,572.89 : 149,359.34 = 29,446.74 : x
  2. Step 2: Convert to fraction form
    99,572.89/149,359.34 = 29,446.74/x
  3. Step 3: Cross multiply
    99,572.89x = 149,359.34 × 29,446.74
  4. Step 4: Simplify right side
    99,572.89x = 4,398,145,651.55
  5. Step 5: Solve for x
    x = 4,398,145,651.55/99,572.89
  6. Step 6: Final answer
    x = 44,170.11

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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.