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Finding the Fourth Proportional to 253,597.86, 349,960.77 and 140,418.18

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Solution

The fourth proportional to 253,597.86, 349,960.77 and 140,418.18 is: 193,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,597.86 : 349,960.77 = 140,418.18 : x
  2. Step 2: Convert to fraction form
    253,597.86/349,960.77 = 140,418.18/x
  3. Step 3: Cross multiply
    253,597.86x = 349,960.77 × 140,418.18
  4. Step 4: Simplify right side
    253,597.86x = 49,140,854,394.80
  5. Step 5: Solve for x
    x = 49,140,854,394.80/253,597.86
  6. Step 6: Final answer
    x = 193,774.72

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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.