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Finding the Fourth Proportional to 88,748.97, 133,009.39 and 77,303.92

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Solution

The fourth proportional to 88,748.97, 133,009.39 and 77,303.92 is: 115,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,748.97 : 133,009.39 = 77,303.92 : x
  2. Step 2: Convert to fraction form
    88,748.97/133,009.39 = 77,303.92/x
  3. Step 3: Cross multiply
    88,748.97x = 133,009.39 × 77,303.92
  4. Step 4: Simplify right side
    88,748.97x = 10,282,147,257.31
  5. Step 5: Solve for x
    x = 10,282,147,257.31/88,748.97
  6. Step 6: Final answer
    x = 115,856.53

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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.