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Finding the Fourth Proportional to 121,472.70, 182,122.65 and 46,563.90

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Solution

The fourth proportional to 121,472.70, 182,122.65 and 46,563.90 is: 69,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,472.70 : 182,122.65 = 46,563.90 : x
  2. Step 2: Convert to fraction form
    121,472.70/182,122.65 = 46,563.90/x
  3. Step 3: Cross multiply
    121,472.70x = 182,122.65 × 46,563.90
  4. Step 4: Simplify right side
    121,472.70x = 8,480,340,862.34
  5. Step 5: Solve for x
    x = 8,480,340,862.34/121,472.70
  6. Step 6: Final answer
    x = 69,812.73

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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.