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Finding the Fourth Proportional to 253,094.85, 349,243.25 and 139,895.73

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Solution

The fourth proportional to 253,094.85, 349,243.25 and 139,895.73 is: 193,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,094.85 : 349,243.25 = 139,895.73 : x
  2. Step 2: Convert to fraction form
    253,094.85/349,243.25 = 139,895.73/x
  3. Step 3: Cross multiply
    253,094.85x = 349,243.25 × 139,895.73
  4. Step 4: Simplify right side
    253,094.85x = 48,857,638,706.84
  5. Step 5: Solve for x
    x = 48,857,638,706.84/253,094.85
  6. Step 6: Final answer
    x = 193,040.83

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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.