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Finding the Fourth Proportional to 127,674.90, 191,393.28 and 43,377.42

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Solution

The fourth proportional to 127,674.90, 191,393.28 and 43,377.42 is: 65,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,674.90 : 191,393.28 = 43,377.42 : x
  2. Step 2: Convert to fraction form
    127,674.90/191,393.28 = 43,377.42/x
  3. Step 3: Cross multiply
    127,674.90x = 191,393.28 × 43,377.42
  4. Step 4: Simplify right side
    127,674.90x = 8,302,146,691.74
  5. Step 5: Solve for x
    x = 8,302,146,691.74/127,674.90
  6. Step 6: Final answer
    x = 65,025.68

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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.