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Finding the Fourth Proportional to 88,047.60, 132,071.40 and 31,914.60

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Solution

The fourth proportional to 88,047.60, 132,071.40 and 31,914.60 is: 47,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,047.60 : 132,071.40 = 31,914.60 : x
  2. Step 2: Convert to fraction form
    88,047.60/132,071.40 = 31,914.60/x
  3. Step 3: Cross multiply
    88,047.60x = 132,071.40 × 31,914.60
  4. Step 4: Simplify right side
    88,047.60x = 4,215,005,902.44
  5. Step 5: Solve for x
    x = 4,215,005,902.44/88,047.60
  6. Step 6: Final answer
    x = 47,871.90

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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.