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Finding the Fourth Proportional to 92,480.70, 138,606.03 and 48,081.36

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Solution

The fourth proportional to 92,480.70, 138,606.03 and 48,081.36 is: 72,062.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,480.70 : 138,606.03 = 48,081.36 : x
  2. Step 2: Convert to fraction form
    92,480.70/138,606.03 = 48,081.36/x
  3. Step 3: Cross multiply
    92,480.70x = 138,606.03 × 48,081.36
  4. Step 4: Simplify right side
    92,480.70x = 6,664,366,426.60
  5. Step 5: Solve for x
    x = 6,664,366,426.60/92,480.70
  6. Step 6: Final answer
    x = 72,062.24

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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.