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Finding the Fourth Proportional to 68,671.97, 103,475.88 and 56,465.44

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Solution

The fourth proportional to 68,671.97, 103,475.88 and 56,465.44 is: 85,082.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,671.97 : 103,475.88 = 56,465.44 : x
  2. Step 2: Convert to fraction form
    68,671.97/103,475.88 = 56,465.44/x
  3. Step 3: Cross multiply
    68,671.97x = 103,475.88 × 56,465.44
  4. Step 4: Simplify right side
    68,671.97x = 5,842,810,834.90
  5. Step 5: Solve for x
    x = 5,842,810,834.90/68,671.97
  6. Step 6: Final answer
    x = 85,082.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.