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Finding the Fourth Proportional to 253,356.90, 349,627.92 and 140,179.66

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Solution

The fourth proportional to 253,356.90, 349,627.92 and 140,179.66 is: 193,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,356.90 : 349,627.92 = 140,179.66 : x
  2. Step 2: Convert to fraction form
    253,356.90/349,627.92 = 140,179.66/x
  3. Step 3: Cross multiply
    253,356.90x = 349,627.92 × 140,179.66
  4. Step 4: Simplify right side
    253,356.90x = 49,010,722,952.11
  5. Step 5: Solve for x
    x = 49,010,722,952.11/253,356.90
  6. Step 6: Final answer
    x = 193,445.38

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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.