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Finding the Fourth Proportional to 127,979.92, 192,000.14 and 57,859.12

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Solution

The fourth proportional to 127,979.92, 192,000.14 and 57,859.12 is: 86,802.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,979.92 : 192,000.14 = 57,859.12 : x
  2. Step 2: Convert to fraction form
    127,979.92/192,000.14 = 57,859.12/x
  3. Step 3: Cross multiply
    127,979.92x = 192,000.14 × 57,859.12
  4. Step 4: Simplify right side
    127,979.92x = 11,108,959,140.28
  5. Step 5: Solve for x
    x = 11,108,959,140.28/127,979.92
  6. Step 6: Final answer
    x = 86,802.36

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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.