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Finding the Fourth Proportional to 88,036.40, 131,881.80 and 52,871.60

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Solution

The fourth proportional to 88,036.40, 131,881.80 and 52,871.60 is: 79,203.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,036.40 : 131,881.80 = 52,871.60 : x
  2. Step 2: Convert to fraction form
    88,036.40/131,881.80 = 52,871.60/x
  3. Step 3: Cross multiply
    88,036.40x = 131,881.80 × 52,871.60
  4. Step 4: Simplify right side
    88,036.40x = 6,972,801,776.88
  5. Step 5: Solve for x
    x = 6,972,801,776.88/88,036.40
  6. Step 6: Final answer
    x = 79,203.62

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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.