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Finding the Fourth Proportional to 84,828.80, 127,306.40 and 32,340.80

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Solution

The fourth proportional to 84,828.80, 127,306.40 and 32,340.80 is: 48,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,828.80 : 127,306.40 = 32,340.80 : x
  2. Step 2: Convert to fraction form
    84,828.80/127,306.40 = 32,340.80/x
  3. Step 3: Cross multiply
    84,828.80x = 127,306.40 × 32,340.80
  4. Step 4: Simplify right side
    84,828.80x = 4,117,190,821.12
  5. Step 5: Solve for x
    x = 4,117,190,821.12/84,828.80
  6. Step 6: Final answer
    x = 48,535.29

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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.