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Finding the Fourth Proportional to 88,912.80, 133,386.48 and 26,581.92

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Solution

The fourth proportional to 88,912.80, 133,386.48 and 26,581.92 is: 39,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912.80 : 133,386.48 = 26,581.92 : x
  2. Step 2: Convert to fraction form
    88,912.80/133,386.48 = 26,581.92/x
  3. Step 3: Cross multiply
    88,912.80x = 133,386.48 × 26,581.92
  4. Step 4: Simplify right side
    88,912.80x = 3,545,668,740.44
  5. Step 5: Solve for x
    x = 3,545,668,740.44/88,912.80
  6. Step 6: Final answer
    x = 39,878.05

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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.