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Finding the Fourth Proportional to 84,866.80, 127,318.56 and 32,277.28

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Solution

The fourth proportional to 84,866.80, 127,318.56 and 32,277.28 is: 48,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,866.80 : 127,318.56 = 32,277.28 : x
  2. Step 2: Convert to fraction form
    84,866.80/127,318.56 = 32,277.28/x
  3. Step 3: Cross multiply
    84,866.80x = 127,318.56 × 32,277.28
  4. Step 4: Simplify right side
    84,866.80x = 4,109,496,810.32
  5. Step 5: Solve for x
    x = 4,109,496,810.32/84,866.80
  6. Step 6: Final answer
    x = 48,422.90

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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.