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Finding the Fourth Proportional to 253,454.67, 349,778.48 and 140,277.39

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Solution

The fourth proportional to 253,454.67, 349,778.48 and 140,277.39 is: 193,588.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,454.67 : 349,778.48 = 140,277.39 : x
  2. Step 2: Convert to fraction form
    253,454.67/349,778.48 = 140,277.39/x
  3. Step 3: Cross multiply
    253,454.67x = 349,778.48 × 140,277.39
  4. Step 4: Simplify right side
    253,454.67x = 49,066,011,551.18
  5. Step 5: Solve for x
    x = 49,066,011,551.18/253,454.67
  6. Step 6: Final answer
    x = 193,588.90

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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.