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Finding the Fourth Proportional to 88,157.30, 132,365.55 and 61,978.10

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Solution

The fourth proportional to 88,157.30, 132,365.55 and 61,978.10 is: 93,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,157.30 : 132,365.55 = 61,978.10 : x
  2. Step 2: Convert to fraction form
    88,157.30/132,365.55 = 61,978.10/x
  3. Step 3: Cross multiply
    88,157.30x = 132,365.55 × 61,978.10
  4. Step 4: Simplify right side
    88,157.30x = 8,203,765,294.46
  5. Step 5: Solve for x
    x = 8,203,765,294.46/88,157.30
  6. Step 6: Final answer
    x = 93,058.26

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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.