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Finding the Fourth Proportional to 84,924.40, 127,532.40 and 55,472.80

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Solution

The fourth proportional to 84,924.40, 127,532.40 and 55,472.80 is: 83,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,924.40 : 127,532.40 = 55,472.80 : x
  2. Step 2: Convert to fraction form
    84,924.40/127,532.40 = 55,472.80/x
  3. Step 3: Cross multiply
    84,924.40x = 127,532.40 × 55,472.80
  4. Step 4: Simplify right side
    84,924.40x = 7,074,579,318.72
  5. Step 5: Solve for x
    x = 7,074,579,318.72/84,924.40
  6. Step 6: Final answer
    x = 83,304.44

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1.5x scale

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.