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Finding the Fourth Proportional to 79,310.62, 109,449.51 and 43,012.14

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Solution

The fourth proportional to 79,310.62, 109,449.51 and 43,012.14 is: 59,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,310.62 : 109,449.51 = 43,012.14 : x
  2. Step 2: Convert to fraction form
    79,310.62/109,449.51 = 43,012.14/x
  3. Step 3: Cross multiply
    79,310.62x = 109,449.51 × 43,012.14
  4. Step 4: Simplify right side
    79,310.62x = 4,707,657,075.32
  5. Step 5: Solve for x
    x = 4,707,657,075.32/79,310.62
  6. Step 6: Final answer
    x = 59,357.21

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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.