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Finding the Fourth Proportional to 66,546.48, 91,864.08 and 43,898.88

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Solution

The fourth proportional to 66,546.48, 91,864.08 and 43,898.88 is: 60,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.48 : 91,864.08 = 43,898.88 : x
  2. Step 2: Convert to fraction form
    66,546.48/91,864.08 = 43,898.88/x
  3. Step 3: Cross multiply
    66,546.48x = 91,864.08 × 43,898.88
  4. Step 4: Simplify right side
    66,546.48x = 4,032,730,224.23
  5. Step 5: Solve for x
    x = 4,032,730,224.23/66,546.48
  6. Step 6: Final answer
    x = 60,600.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.