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Finding the Fourth Proportional to 127,340.20, 191,048.70 and 68,204.20

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Solution

The fourth proportional to 127,340.20, 191,048.70 and 68,204.20 is: 102,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.20 : 191,048.70 = 68,204.20 : x
  2. Step 2: Convert to fraction form
    127,340.20/191,048.70 = 68,204.20/x
  3. Step 3: Cross multiply
    127,340.20x = 191,048.70 × 68,204.20
  4. Step 4: Simplify right side
    127,340.20x = 13,030,323,744.54
  5. Step 5: Solve for x
    x = 13,030,323,744.54/127,340.20
  6. Step 6: Final answer
    x = 102,326.87

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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.