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Finding the Fourth Proportional to 88,689.45, 132,918.65 and 36,037.38

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Solution

The fourth proportional to 88,689.45, 132,918.65 and 36,037.38 is: 54,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.45 : 132,918.65 = 36,037.38 : x
  2. Step 2: Convert to fraction form
    88,689.45/132,918.65 = 36,037.38/x
  3. Step 3: Cross multiply
    88,689.45x = 132,918.65 × 36,037.38
  4. Step 4: Simplify right side
    88,689.45x = 4,790,039,899.14
  5. Step 5: Solve for x
    x = 4,790,039,899.14/88,689.45
  6. Step 6: Final answer
    x = 54,009.13

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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.