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Finding the Fourth Proportional to 79,018.32, 109,043.16 and 46,754.61

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Solution

The fourth proportional to 79,018.32, 109,043.16 and 46,754.61 is: 64,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,018.32 : 109,043.16 = 46,754.61 : x
  2. Step 2: Convert to fraction form
    79,018.32/109,043.16 = 46,754.61/x
  3. Step 3: Cross multiply
    79,018.32x = 109,043.16 × 46,754.61
  4. Step 4: Simplify right side
    79,018.32x = 5,098,270,418.97
  5. Step 5: Solve for x
    x = 5,098,270,418.97/79,018.32
  6. Step 6: Final answer
    x = 64,520.11

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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.