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Finding the Fourth Proportional to 88,206.90, 132,091.65 and 70,710.90

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Solution

The fourth proportional to 88,206.90, 132,091.65 and 70,710.90 is: 105,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,206.90 : 132,091.65 = 70,710.90 : x
  2. Step 2: Convert to fraction form
    88,206.90/132,091.65 = 70,710.90/x
  3. Step 3: Cross multiply
    88,206.90x = 132,091.65 × 70,710.90
  4. Step 4: Simplify right side
    88,206.90x = 9,340,319,453.99
  5. Step 5: Solve for x
    x = 9,340,319,453.99/88,206.90
  6. Step 6: Final answer
    x = 105,891.03

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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.