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Finding the Fourth Proportional to 92,456.64, 127,720.80 and 73,569.60

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Solution

The fourth proportional to 92,456.64, 127,720.80 and 73,569.60 is: 101,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,456.64 : 127,720.80 = 73,569.60 : x
  2. Step 2: Convert to fraction form
    92,456.64/127,720.80 = 73,569.60/x
  3. Step 3: Cross multiply
    92,456.64x = 127,720.80 × 73,569.60
  4. Step 4: Simplify right side
    92,456.64x = 9,396,368,167.68
  5. Step 5: Solve for x
    x = 9,396,368,167.68/92,456.64
  6. Step 6: Final answer
    x = 101,630.00

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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.