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Finding the Fourth Proportional to 79,657.61, 109,923.72 and 43,846.88

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Solution

The fourth proportional to 79,657.61, 109,923.72 and 43,846.88 is: 60,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,657.61 : 109,923.72 = 43,846.88 : x
  2. Step 2: Convert to fraction form
    79,657.61/109,923.72 = 43,846.88/x
  3. Step 3: Cross multiply
    79,657.61x = 109,923.72 × 43,846.88
  4. Step 4: Simplify right side
    79,657.61x = 4,819,812,159.99
  5. Step 5: Solve for x
    x = 4,819,812,159.99/79,657.61
  6. Step 6: Final answer
    x = 60,506.61

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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.