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Finding the Fourth Proportional to 283,138.04, 424,510.22 and 125,280.38

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Solution

The fourth proportional to 283,138.04, 424,510.22 and 125,280.38 is: 187,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,138.04 : 424,510.22 = 125,280.38 : x
  2. Step 2: Convert to fraction form
    283,138.04/424,510.22 = 125,280.38/x
  3. Step 3: Cross multiply
    283,138.04x = 424,510.22 × 125,280.38
  4. Step 4: Simplify right side
    283,138.04x = 53,182,801,675.48
  5. Step 5: Solve for x
    x = 53,182,801,675.48/283,138.04
  6. Step 6: Final answer
    x = 187,833.47

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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.