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Finding the Fourth Proportional to 88,306.88, 132,547.68 and 71,860.48

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Solution

The fourth proportional to 88,306.88, 132,547.68 and 71,860.48 is: 107,861.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,306.88 : 132,547.68 = 71,860.48 : x
  2. Step 2: Convert to fraction form
    88,306.88/132,547.68 = 71,860.48/x
  3. Step 3: Cross multiply
    88,306.88x = 132,547.68 × 71,860.48
  4. Step 4: Simplify right side
    88,306.88x = 9,524,939,907.69
  5. Step 5: Solve for x
    x = 9,524,939,907.69/88,306.88
  6. Step 6: Final answer
    x = 107,861.81

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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.