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Finding the Fourth Proportional to 88,716.60, 133,074.90 and 26,387.10

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Solution

The fourth proportional to 88,716.60, 133,074.90 and 26,387.10 is: 39,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,716.60 : 133,074.90 = 26,387.10 : x
  2. Step 2: Convert to fraction form
    88,716.60/133,074.90 = 26,387.10/x
  3. Step 3: Cross multiply
    88,716.60x = 133,074.90 × 26,387.10
  4. Step 4: Simplify right side
    88,716.60x = 3,511,460,693.79
  5. Step 5: Solve for x
    x = 3,511,460,693.79/88,716.60
  6. Step 6: Final answer
    x = 39,580.65

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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.