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Finding the Fourth Proportional to 260,902.95, 359,886.93 and 172,497.85

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Solution

The fourth proportional to 260,902.95, 359,886.93 and 172,497.85 is: 237,941.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,902.95 : 359,886.93 = 172,497.85 : x
  2. Step 2: Convert to fraction form
    260,902.95/359,886.93 = 172,497.85/x
  3. Step 3: Cross multiply
    260,902.95x = 359,886.93 × 172,497.85
  4. Step 4: Simplify right side
    260,902.95x = 62,079,720,121.52
  5. Step 5: Solve for x
    x = 62,079,720,121.52/260,902.95
  6. Step 6: Final answer
    x = 237,941.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.