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Finding the Fourth Proportional to 283,537.70, 425,306.55 and 83,840.30

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Solution

The fourth proportional to 283,537.70, 425,306.55 and 83,840.30 is: 125,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,537.70 : 425,306.55 = 83,840.30 : x
  2. Step 2: Convert to fraction form
    283,537.70/425,306.55 = 83,840.30/x
  3. Step 3: Cross multiply
    283,537.70x = 425,306.55 × 83,840.30
  4. Step 4: Simplify right side
    283,537.70x = 35,657,828,743.97
  5. Step 5: Solve for x
    x = 35,657,828,743.97/283,537.70
  6. Step 6: Final answer
    x = 125,760.45

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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.