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Finding the Fourth Proportional to 127,000.80, 190,414.80 and 60,472.80

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Solution

The fourth proportional to 127,000.80, 190,414.80 and 60,472.80 is: 90,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,000.80 : 190,414.80 = 60,472.80 : x
  2. Step 2: Convert to fraction form
    127,000.80/190,414.80 = 60,472.80/x
  3. Step 3: Cross multiply
    127,000.80x = 190,414.80 × 60,472.80
  4. Step 4: Simplify right side
    127,000.80x = 11,514,916,117.44
  5. Step 5: Solve for x
    x = 11,514,916,117.44/127,000.80
  6. Step 6: Final answer
    x = 90,668.06

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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.