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Finding the Fourth Proportional to 88,315.36, 132,489.48 and 40,899.16

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Solution

The fourth proportional to 88,315.36, 132,489.48 and 40,899.16 is: 61,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,315.36 : 132,489.48 = 40,899.16 : x
  2. Step 2: Convert to fraction form
    88,315.36/132,489.48 = 40,899.16/x
  3. Step 3: Cross multiply
    88,315.36x = 132,489.48 × 40,899.16
  4. Step 4: Simplify right side
    88,315.36x = 5,418,708,440.84
  5. Step 5: Solve for x
    x = 5,418,708,440.84/88,315.36
  6. Step 6: Final answer
    x = 61,356.35

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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.