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Finding the Fourth Proportional to 84,744.10, 127,116.15 and 73,080.10

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Solution

The fourth proportional to 84,744.10, 127,116.15 and 73,080.10 is: 109,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,744.10 : 127,116.15 = 73,080.10 : x
  2. Step 2: Convert to fraction form
    84,744.10/127,116.15 = 73,080.10/x
  3. Step 3: Cross multiply
    84,744.10x = 127,116.15 × 73,080.10
  4. Step 4: Simplify right side
    84,744.10x = 9,289,660,953.62
  5. Step 5: Solve for x
    x = 9,289,660,953.62/84,744.10
  6. Step 6: Final answer
    x = 109,620.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.