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Finding the Fourth Proportional to 80,847.61, 111,573.06 and 45,037.61

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Solution

The fourth proportional to 80,847.61, 111,573.06 and 45,037.61 is: 62,153.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,847.61 : 111,573.06 = 45,037.61 : x
  2. Step 2: Convert to fraction form
    80,847.61/111,573.06 = 45,037.61/x
  3. Step 3: Cross multiply
    80,847.61x = 111,573.06 × 45,037.61
  4. Step 4: Simplify right side
    80,847.61x = 5,024,983,962.79
  5. Step 5: Solve for x
    x = 5,024,983,962.79/80,847.61
  6. Step 6: Final answer
    x = 62,153.77

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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.