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Finding the Fourth Proportional to 66,828.61, 100,242.88 and 62,399.94

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Solution

The fourth proportional to 66,828.61, 100,242.88 and 62,399.94 is: 93,599.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,828.61 : 100,242.88 = 62,399.94 : x
  2. Step 2: Convert to fraction form
    66,828.61/100,242.88 = 62,399.94/x
  3. Step 3: Cross multiply
    66,828.61x = 100,242.88 × 62,399.94
  4. Step 4: Simplify right side
    66,828.61x = 6,255,149,697.43
  5. Step 5: Solve for x
    x = 6,255,149,697.43/66,828.61
  6. Step 6: Final answer
    x = 93,599.88

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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.