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Finding the Fourth Proportional to 132,938.40, 199,504.80 and 88,550.40

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Solution

The fourth proportional to 132,938.40, 199,504.80 and 88,550.40 is: 132,890.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,938.40 : 199,504.80 = 88,550.40 : x
  2. Step 2: Convert to fraction form
    132,938.40/199,504.80 = 88,550.40/x
  3. Step 3: Cross multiply
    132,938.40x = 199,504.80 × 88,550.40
  4. Step 4: Simplify right side
    132,938.40x = 17,666,229,841.92
  5. Step 5: Solve for x
    x = 17,666,229,841.92/132,938.40
  6. Step 6: Final answer
    x = 132,890.35

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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.