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Finding the Fourth Proportional to 113,646.17, 156,850.20 and 68,369.92

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Solution

The fourth proportional to 113,646.17, 156,850.20 and 68,369.92 is: 94,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,646.17 : 156,850.20 = 68,369.92 : x
  2. Step 2: Convert to fraction form
    113,646.17/156,850.20 = 68,369.92/x
  3. Step 3: Cross multiply
    113,646.17x = 156,850.20 × 68,369.92
  4. Step 4: Simplify right side
    113,646.17x = 10,723,835,233.86
  5. Step 5: Solve for x
    x = 10,723,835,233.86/113,646.17
  6. Step 6: Final answer
    x = 94,361.60

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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.