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Finding the Fourth Proportional to 88,456.48, 132,587.40 and 38,478.40

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Solution

The fourth proportional to 88,456.48, 132,587.40 and 38,478.40 is: 57,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,456.48 : 132,587.40 = 38,478.40 : x
  2. Step 2: Convert to fraction form
    88,456.48/132,587.40 = 38,478.40/x
  3. Step 3: Cross multiply
    88,456.48x = 132,587.40 × 38,478.40
  4. Step 4: Simplify right side
    88,456.48x = 5,101,751,012.16
  5. Step 5: Solve for x
    x = 5,101,751,012.16/88,456.48
  6. Step 6: Final answer
    x = 57,675.27

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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.