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Finding the Fourth Proportional to 91,730.44, 126,470.84 and 59,407.97

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Solution

The fourth proportional to 91,730.44, 126,470.84 and 59,407.97 is: 81,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,730.44 : 126,470.84 = 59,407.97 : x
  2. Step 2: Convert to fraction form
    91,730.44/126,470.84 = 59,407.97/x
  3. Step 3: Cross multiply
    91,730.44x = 126,470.84 × 59,407.97
  4. Step 4: Simplify right side
    91,730.44x = 7,513,374,939.20
  5. Step 5: Solve for x
    x = 7,513,374,939.20/91,730.44
  6. Step 6: Final answer
    x = 81,907.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.