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Finding the Fourth Proportional to 251,866.76, 377,800.20 and 83,341.80

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Solution

The fourth proportional to 251,866.76, 377,800.20 and 83,341.80 is: 125,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,866.76 : 377,800.20 = 83,341.80 : x
  2. Step 2: Convert to fraction form
    251,866.76/377,800.20 = 83,341.80/x
  3. Step 3: Cross multiply
    251,866.76x = 377,800.20 × 83,341.80
  4. Step 4: Simplify right side
    251,866.76x = 31,486,548,708.36
  5. Step 5: Solve for x
    x = 31,486,548,708.36/251,866.76
  6. Step 6: Final answer
    x = 125,012.72

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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.