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Finding the Fourth Proportional to 66,040.80, 99,061.20 and 58,823.70

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Solution

The fourth proportional to 66,040.80, 99,061.20 and 58,823.70 is: 88,235.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.80 : 99,061.20 = 58,823.70 : x
  2. Step 2: Convert to fraction form
    66,040.80/99,061.20 = 58,823.70/x
  3. Step 3: Cross multiply
    66,040.80x = 99,061.20 × 58,823.70
  4. Step 4: Simplify right side
    66,040.80x = 5,827,146,310.44
  5. Step 5: Solve for x
    x = 5,827,146,310.44/66,040.80
  6. Step 6: Final answer
    x = 88,235.55

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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.