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Finding the Fourth Proportional to 79,618.14, 109,870.29 and 43,804.80

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Solution

The fourth proportional to 79,618.14, 109,870.29 and 43,804.80 is: 60,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,618.14 : 109,870.29 = 43,804.80 : x
  2. Step 2: Convert to fraction form
    79,618.14/109,870.29 = 43,804.80/x
  3. Step 3: Cross multiply
    79,618.14x = 109,870.29 × 43,804.80
  4. Step 4: Simplify right side
    79,618.14x = 4,812,846,079.39
  5. Step 5: Solve for x
    x = 4,812,846,079.39/79,618.14
  6. Step 6: Final answer
    x = 60,449.11

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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.