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Finding the Fourth Proportional to 170,793.72, 256,301.28 and 77,300.28

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Solution

The fourth proportional to 170,793.72, 256,301.28 and 77,300.28 is: 116,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,793.72 : 256,301.28 = 77,300.28 : x
  2. Step 2: Convert to fraction form
    170,793.72/256,301.28 = 77,300.28/x
  3. Step 3: Cross multiply
    170,793.72x = 256,301.28 × 77,300.28
  4. Step 4: Simplify right side
    170,793.72x = 19,812,160,708.36
  5. Step 5: Solve for x
    x = 19,812,160,708.36/170,793.72
  6. Step 6: Final answer
    x = 116,000.52

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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.