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Finding the Fourth Proportional to 127,812.60, 191,791.80 and 48,983.40

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Solution

The fourth proportional to 127,812.60, 191,791.80 and 48,983.40 is: 73,503.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,812.60 : 191,791.80 = 48,983.40 : x
  2. Step 2: Convert to fraction form
    127,812.60/191,791.80 = 48,983.40/x
  3. Step 3: Cross multiply
    127,812.60x = 191,791.80 × 48,983.40
  4. Step 4: Simplify right side
    127,812.60x = 9,394,614,456.12
  5. Step 5: Solve for x
    x = 9,394,614,456.12/127,812.60
  6. Step 6: Final answer
    x = 73,503.04

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1.5x scale

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.