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Finding the Fourth Proportional to 84,470.85, 126,710.48 and 25,300.88

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Solution

The fourth proportional to 84,470.85, 126,710.48 and 25,300.88 is: 37,952.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,470.85 : 126,710.48 = 25,300.88 : x
  2. Step 2: Convert to fraction form
    84,470.85/126,710.48 = 25,300.88/x
  3. Step 3: Cross multiply
    84,470.85x = 126,710.48 × 25,300.88
  4. Step 4: Simplify right side
    84,470.85x = 3,205,886,395.70
  5. Step 5: Solve for x
    x = 3,205,886,395.70/84,470.85
  6. Step 6: Final answer
    x = 37,952.58

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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.