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Finding the Fourth Proportional to 261,143.49, 360,245.35 and 170,552.48

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Solution

The fourth proportional to 261,143.49, 360,245.35 and 170,552.48 is: 235,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,143.49 : 360,245.35 = 170,552.48 : x
  2. Step 2: Convert to fraction form
    261,143.49/360,245.35 = 170,552.48/x
  3. Step 3: Cross multiply
    261,143.49x = 360,245.35 × 170,552.48
  4. Step 4: Simplify right side
    261,143.49x = 61,440,737,850.97
  5. Step 5: Solve for x
    x = 61,440,737,850.97/261,143.49
  6. Step 6: Final answer
    x = 235,275.78

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1.5x scale

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.