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Finding the Fourth Proportional to 88,413, 132,620.72 and 49,047

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Solution

The fourth proportional to 88,413, 132,620.72 and 49,047 is: 73,571.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,413 : 132,620.72 = 49,047 : x
  2. Step 2: Convert to fraction form
    88,413/132,620.72 = 49,047/x
  3. Step 3: Cross multiply
    88,413x = 132,620.72 × 49,047
  4. Step 4: Simplify right side
    88,413x = 6,504,648,453.84
  5. Step 5: Solve for x
    x = 6,504,648,453.84/88,413
  6. Step 6: Final answer
    x = 73,571.18

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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.