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Finding the Fourth Proportional to 91,158.70, 125,810.46 and 52,910.02

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Solution

The fourth proportional to 91,158.70, 125,810.46 and 52,910.02 is: 73,022.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,158.70 : 125,810.46 = 52,910.02 : x
  2. Step 2: Convert to fraction form
    91,158.70/125,810.46 = 52,910.02/x
  3. Step 3: Cross multiply
    91,158.70x = 125,810.46 × 52,910.02
  4. Step 4: Simplify right side
    91,158.70x = 6,656,633,954.81
  5. Step 5: Solve for x
    x = 6,656,633,954.81/91,158.70
  6. Step 6: Final answer
    x = 73,022.48

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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.