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Finding the Fourth Proportional to 452,682.95, 679,129.59 and 132,821.90

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Solution

The fourth proportional to 452,682.95, 679,129.59 and 132,821.90 is: 199,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,682.95 : 679,129.59 = 132,821.90 : x
  2. Step 2: Convert to fraction form
    452,682.95/679,129.59 = 132,821.90/x
  3. Step 3: Cross multiply
    452,682.95x = 679,129.59 × 132,821.90
  4. Step 4: Simplify right side
    452,682.95x = 90,203,279,094.37
  5. Step 5: Solve for x
    x = 90,203,279,094.37/452,682.95
  6. Step 6: Final answer
    x = 199,263.70

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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.