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Finding the Fourth Proportional to 88,892.40, 133,165.80 and 49,378.80

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Solution

The fourth proportional to 88,892.40, 133,165.80 and 49,378.80 is: 73,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,892.40 : 133,165.80 = 49,378.80 : x
  2. Step 2: Convert to fraction form
    88,892.40/133,165.80 = 49,378.80/x
  3. Step 3: Cross multiply
    88,892.40x = 133,165.80 × 49,378.80
  4. Step 4: Simplify right side
    88,892.40x = 6,575,567,405.04
  5. Step 5: Solve for x
    x = 6,575,567,405.04/88,892.40
  6. Step 6: Final answer
    x = 73,972.21

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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.