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Finding the Fourth Proportional to 183,407.20, 275,110.80 and 103,691.05

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Solution

The fourth proportional to 183,407.20, 275,110.80 and 103,691.05 is: 155,536.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,407.20 : 275,110.80 = 103,691.05 : x
  2. Step 2: Convert to fraction form
    183,407.20/275,110.80 = 103,691.05/x
  3. Step 3: Cross multiply
    183,407.20x = 275,110.80 × 103,691.05
  4. Step 4: Simplify right side
    183,407.20x = 28,526,527,718.34
  5. Step 5: Solve for x
    x = 28,526,527,718.34/183,407.20
  6. Step 6: Final answer
    x = 155,536.58

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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.