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Finding the Fourth Proportional to 124,801.20, 187,201.80 and 54,817.20

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Solution

The fourth proportional to 124,801.20, 187,201.80 and 54,817.20 is: 82,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,801.20 : 187,201.80 = 54,817.20 : x
  2. Step 2: Convert to fraction form
    124,801.20/187,201.80 = 54,817.20/x
  3. Step 3: Cross multiply
    124,801.20x = 187,201.80 × 54,817.20
  4. Step 4: Simplify right side
    124,801.20x = 10,261,878,510.96
  5. Step 5: Solve for x
    x = 10,261,878,510.96/124,801.20
  6. Step 6: Final answer
    x = 82,225.80

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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.