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Finding the Fourth Proportional to 92,165.92, 138,248.81 and 52,695.36

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Solution

The fourth proportional to 92,165.92, 138,248.81 and 52,695.36 is: 79,043.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,165.92 : 138,248.81 = 52,695.36 : x
  2. Step 2: Convert to fraction form
    92,165.92/138,248.81 = 52,695.36/x
  3. Step 3: Cross multiply
    92,165.92x = 138,248.81 × 52,695.36
  4. Step 4: Simplify right side
    92,165.92x = 7,285,070,549.04
  5. Step 5: Solve for x
    x = 7,285,070,549.04/92,165.92
  6. Step 6: Final answer
    x = 79,043.00

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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.