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Finding the Fourth Proportional to 159,462.98, 220,057.89 and 87,841.34

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Solution

The fourth proportional to 159,462.98, 220,057.89 and 87,841.34 is: 121,220.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,462.98 : 220,057.89 = 87,841.34 : x
  2. Step 2: Convert to fraction form
    159,462.98/220,057.89 = 87,841.34/x
  3. Step 3: Cross multiply
    159,462.98x = 220,057.89 × 87,841.34
  4. Step 4: Simplify right side
    159,462.98x = 19,330,179,935.17
  5. Step 5: Solve for x
    x = 19,330,179,935.17/159,462.98
  6. Step 6: Final answer
    x = 121,220.49

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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.