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Finding the Fourth Proportional to 88,036.80, 132,346.80 and 75,206.40

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Solution

The fourth proportional to 88,036.80, 132,346.80 and 75,206.40 is: 113,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,036.80 : 132,346.80 = 75,206.40 : x
  2. Step 2: Convert to fraction form
    88,036.80/132,346.80 = 75,206.40/x
  3. Step 3: Cross multiply
    88,036.80x = 132,346.80 × 75,206.40
  4. Step 4: Simplify right side
    88,036.80x = 9,953,326,379.52
  5. Step 5: Solve for x
    x = 9,953,326,379.52/88,036.80
  6. Step 6: Final answer
    x = 113,058.70

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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.