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Finding the Fourth Proportional to 88,419.58, 132,630.74 and 49,225.80

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Solution

The fourth proportional to 88,419.58, 132,630.74 and 49,225.80 is: 73,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,419.58 : 132,630.74 = 49,225.80 : x
  2. Step 2: Convert to fraction form
    88,419.58/132,630.74 = 49,225.80/x
  3. Step 3: Cross multiply
    88,419.58x = 132,630.74 × 49,225.80
  4. Step 4: Simplify right side
    88,419.58x = 6,528,854,716.93
  5. Step 5: Solve for x
    x = 6,528,854,716.93/88,419.58
  6. Step 6: Final answer
    x = 73,839.47

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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.