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Finding the Fourth Proportional to 261,172.67, 360,440.15 and 146,449.49

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Solution

The fourth proportional to 261,172.67, 360,440.15 and 146,449.49 is: 202,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,172.67 : 360,440.15 = 146,449.49 : x
  2. Step 2: Convert to fraction form
    261,172.67/360,440.15 = 146,449.49/x
  3. Step 3: Cross multiply
    261,172.67x = 360,440.15 × 146,449.49
  4. Step 4: Simplify right side
    261,172.67x = 52,786,273,608.58
  5. Step 5: Solve for x
    x = 52,786,273,608.58/261,172.67
  6. Step 6: Final answer
    x = 202,112.55

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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.