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Finding the Fourth Proportional to 127,519.60, 191,279.40 and 119,646.40

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Solution

The fourth proportional to 127,519.60, 191,279.40 and 119,646.40 is: 179,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,519.60 : 191,279.40 = 119,646.40 : x
  2. Step 2: Convert to fraction form
    127,519.60/191,279.40 = 119,646.40/x
  3. Step 3: Cross multiply
    127,519.60x = 191,279.40 × 119,646.40
  4. Step 4: Simplify right side
    127,519.60x = 22,885,891,604.16
  5. Step 5: Solve for x
    x = 22,885,891,604.16/127,519.60
  6. Step 6: Final answer
    x = 179,469.60

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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.