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Finding the Fourth Proportional to 123,886.80, 185,830.20 and 73,367.10

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Solution

The fourth proportional to 123,886.80, 185,830.20 and 73,367.10 is: 110,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,886.80 : 185,830.20 = 73,367.10 : x
  2. Step 2: Convert to fraction form
    123,886.80/185,830.20 = 73,367.10/x
  3. Step 3: Cross multiply
    123,886.80x = 185,830.20 × 73,367.10
  4. Step 4: Simplify right side
    123,886.80x = 13,633,822,866.42
  5. Step 5: Solve for x
    x = 13,633,822,866.42/123,886.80
  6. Step 6: Final answer
    x = 110,050.65

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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.