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Finding the Fourth Proportional to 60,544.90, 90,883.32 and 45,913.78

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Solution

The fourth proportional to 60,544.90, 90,883.32 and 45,913.78 is: 68,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,544.90 : 90,883.32 = 45,913.78 : x
  2. Step 2: Convert to fraction form
    60,544.90/90,883.32 = 45,913.78/x
  3. Step 3: Cross multiply
    60,544.90x = 90,883.32 × 45,913.78
  4. Step 4: Simplify right side
    60,544.90x = 4,172,796,760.15
  5. Step 5: Solve for x
    x = 4,172,796,760.15/60,544.90
  6. Step 6: Final answer
    x = 68,920.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.