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Finding the Fourth Proportional to 91,797.90, 126,659.52 and 53,534.58

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Solution

The fourth proportional to 91,797.90, 126,659.52 and 53,534.58 is: 73,865.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,797.90 : 126,659.52 = 53,534.58 : x
  2. Step 2: Convert to fraction form
    91,797.90/126,659.52 = 53,534.58/x
  3. Step 3: Cross multiply
    91,797.90x = 126,659.52 × 53,534.58
  4. Step 4: Simplify right side
    91,797.90x = 6,780,664,206.20
  5. Step 5: Solve for x
    x = 6,780,664,206.20/91,797.90
  6. Step 6: Final answer
    x = 73,865.13

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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.