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Finding the Fourth Proportional to 88,641.12, 132,986.88 and 36,088.32

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Solution

The fourth proportional to 88,641.12, 132,986.88 and 36,088.32 is: 54,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,641.12 : 132,986.88 = 36,088.32 : x
  2. Step 2: Convert to fraction form
    88,641.12/132,986.88 = 36,088.32/x
  3. Step 3: Cross multiply
    88,641.12x = 132,986.88 × 36,088.32
  4. Step 4: Simplify right side
    88,641.12x = 4,799,273,081.24
  5. Step 5: Solve for x
    x = 4,799,273,081.24/88,641.12
  6. Step 6: Final answer
    x = 54,142.74

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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.