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Finding the Fourth Proportional to 127,755.70, 191,633.55 and 48,829.30

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Solution

The fourth proportional to 127,755.70, 191,633.55 and 48,829.30 is: 73,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,755.70 : 191,633.55 = 48,829.30 : x
  2. Step 2: Convert to fraction form
    127,755.70/191,633.55 = 48,829.30/x
  3. Step 3: Cross multiply
    127,755.70x = 191,633.55 × 48,829.30
  4. Step 4: Simplify right side
    127,755.70x = 9,357,332,103.02
  5. Step 5: Solve for x
    x = 9,357,332,103.02/127,755.70
  6. Step 6: Final answer
    x = 73,243.95

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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.