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Finding the Fourth Proportional to 66,476.88, 99,761.99 and 60,124.46

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Solution

The fourth proportional to 66,476.88, 99,761.99 and 60,124.46 is: 90,228.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,476.88 : 99,761.99 = 60,124.46 : x
  2. Step 2: Convert to fraction form
    66,476.88/99,761.99 = 60,124.46/x
  3. Step 3: Cross multiply
    66,476.88x = 99,761.99 × 60,124.46
  4. Step 4: Simplify right side
    66,476.88x = 5,998,134,977.84
  5. Step 5: Solve for x
    x = 5,998,134,977.84/66,476.88
  6. Step 6: Final answer
    x = 90,228.89

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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.