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Finding the Fourth Proportional to 159,592.92, 220,236.76 and 86,995.80

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Solution

The fourth proportional to 159,592.92, 220,236.76 and 86,995.80 is: 120,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,592.92 : 220,236.76 = 86,995.80 : x
  2. Step 2: Convert to fraction form
    159,592.92/220,236.76 = 86,995.80/x
  3. Step 3: Cross multiply
    159,592.92x = 220,236.76 × 86,995.80
  4. Step 4: Simplify right side
    159,592.92x = 19,159,673,125.61
  5. Step 5: Solve for x
    x = 19,159,673,125.61/159,592.92
  6. Step 6: Final answer
    x = 120,053.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.