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Finding the Fourth Proportional to 99,484, 149,267.76 and 40,361.92

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Solution

The fourth proportional to 99,484, 149,267.76 and 40,361.92 is: 60,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,484 : 149,267.76 = 40,361.92 : x
  2. Step 2: Convert to fraction form
    99,484/149,267.76 = 40,361.92/x
  3. Step 3: Cross multiply
    99,484x = 149,267.76 × 40,361.92
  4. Step 4: Simplify right side
    99,484x = 6,024,733,387.70
  5. Step 5: Solve for x
    x = 6,024,733,387.70/99,484
  6. Step 6: Final answer
    x = 60,559.82

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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.