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Finding the Fourth Proportional to 90,482.91, 124,860.78 and 50,195.85

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Solution

The fourth proportional to 90,482.91, 124,860.78 and 50,195.85 is: 69,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.91 : 124,860.78 = 50,195.85 : x
  2. Step 2: Convert to fraction form
    90,482.91/124,860.78 = 50,195.85/x
  3. Step 3: Cross multiply
    90,482.91x = 124,860.78 × 50,195.85
  4. Step 4: Simplify right side
    90,482.91x = 6,267,492,983.76
  5. Step 5: Solve for x
    x = 6,267,492,983.76/90,482.91
  6. Step 6: Final answer
    x = 69,267.15

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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.