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Finding the Fourth Proportional to 247,381.11, 341,385.98 and 139,948.92

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Solution

The fourth proportional to 247,381.11, 341,385.98 and 139,948.92 is: 193,129.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,381.11 : 341,385.98 = 139,948.92 : x
  2. Step 2: Convert to fraction form
    247,381.11/341,385.98 = 139,948.92/x
  3. Step 3: Cross multiply
    247,381.11x = 341,385.98 × 139,948.92
  4. Step 4: Simplify right side
    247,381.11x = 47,776,598,504.40
  5. Step 5: Solve for x
    x = 47,776,598,504.40/247,381.11
  6. Step 6: Final answer
    x = 193,129.53

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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.