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Finding the Fourth Proportional to 88,355.80, 132,488.34 and 26,018.20

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Solution

The fourth proportional to 88,355.80, 132,488.34 and 26,018.20 is: 39,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,355.80 : 132,488.34 = 26,018.20 : x
  2. Step 2: Convert to fraction form
    88,355.80/132,488.34 = 26,018.20/x
  3. Step 3: Cross multiply
    88,355.80x = 132,488.34 × 26,018.20
  4. Step 4: Simplify right side
    88,355.80x = 3,447,108,127.79
  5. Step 5: Solve for x
    x = 3,447,108,127.79/88,355.80
  6. Step 6: Final answer
    x = 39,013.94

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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.