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Finding the Fourth Proportional to 251,805.57, 377,708.40 and 83,280.68

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Solution

The fourth proportional to 251,805.57, 377,708.40 and 83,280.68 is: 124,921.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,805.57 : 377,708.40 = 83,280.68 : x
  2. Step 2: Convert to fraction form
    251,805.57/377,708.40 = 83,280.68/x
  3. Step 3: Cross multiply
    251,805.57x = 377,708.40 × 83,280.68
  4. Step 4: Simplify right side
    251,805.57x = 31,455,810,505.17
  5. Step 5: Solve for x
    x = 31,455,810,505.17/251,805.57
  6. Step 6: Final answer
    x = 124,921.03

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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.