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Finding the Fourth Proportional to 91,230.69, 125,862.60 and 52,983.70

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Solution

The fourth proportional to 91,230.69, 125,862.60 and 52,983.70 is: 73,096.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,230.69 : 125,862.60 = 52,983.70 : x
  2. Step 2: Convert to fraction form
    91,230.69/125,862.60 = 52,983.70/x
  3. Step 3: Cross multiply
    91,230.69x = 125,862.60 × 52,983.70
  4. Step 4: Simplify right side
    91,230.69x = 6,668,666,239.62
  5. Step 5: Solve for x
    x = 6,668,666,239.62/91,230.69
  6. Step 6: Final answer
    x = 73,096.74

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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.