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Finding the Fourth Proportional to 88,415.49, 132,624.63 and 49,221.72

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Solution

The fourth proportional to 88,415.49, 132,624.63 and 49,221.72 is: 73,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,415.49 : 132,624.63 = 49,221.72 : x
  2. Step 2: Convert to fraction form
    88,415.49/132,624.63 = 49,221.72/x
  3. Step 3: Cross multiply
    88,415.49x = 132,624.63 × 49,221.72
  4. Step 4: Simplify right side
    88,415.49x = 6,528,012,402.96
  5. Step 5: Solve for x
    x = 6,528,012,402.96/88,415.49
  6. Step 6: Final answer
    x = 73,833.36

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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.