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Finding the Fourth Proportional to 85,297.32, 117,731.88 and 49,482.77

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Solution

The fourth proportional to 85,297.32, 117,731.88 and 49,482.77 is: 68,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,297.32 : 117,731.88 = 49,482.77 : x
  2. Step 2: Convert to fraction form
    85,297.32/117,731.88 = 49,482.77/x
  3. Step 3: Cross multiply
    85,297.32x = 117,731.88 × 49,482.77
  4. Step 4: Simplify right side
    85,297.32x = 5,825,698,951.05
  5. Step 5: Solve for x
    x = 5,825,698,951.05/85,297.32
  6. Step 6: Final answer
    x = 68,298.73

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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.