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Finding the Fourth Proportional to 307,063.88, 423,751.18 and 179,742.20

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Solution

The fourth proportional to 307,063.88, 423,751.18 and 179,742.20 is: 248,046.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,063.88 : 423,751.18 = 179,742.20 : x
  2. Step 2: Convert to fraction form
    307,063.88/423,751.18 = 179,742.20/x
  3. Step 3: Cross multiply
    307,063.88x = 423,751.18 × 179,742.20
  4. Step 4: Simplify right side
    307,063.88x = 76,165,969,345.80
  5. Step 5: Solve for x
    x = 76,165,969,345.80/307,063.88
  6. Step 6: Final answer
    x = 248,046.01

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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.