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Finding the Fourth Proportional to 158,893.92, 238,439.28 and 92,365.32

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Solution

The fourth proportional to 158,893.92, 238,439.28 and 92,365.32 is: 138,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,893.92 : 238,439.28 = 92,365.32 : x
  2. Step 2: Convert to fraction form
    158,893.92/238,439.28 = 92,365.32/x
  3. Step 3: Cross multiply
    158,893.92x = 238,439.28 × 92,365.32
  4. Step 4: Simplify right side
    158,893.92x = 22,023,520,397.77
  5. Step 5: Solve for x
    x = 22,023,520,397.77/158,893.92
  6. Step 6: Final answer
    x = 138,605.18

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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.