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Finding the Fourth Proportional to 307,891.40, 462,312.30 and 167,923.40

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Solution

The fourth proportional to 307,891.40, 462,312.30 and 167,923.40 is: 252,144.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,891.40 : 462,312.30 = 167,923.40 : x
  2. Step 2: Convert to fraction form
    307,891.40/462,312.30 = 167,923.40/x
  3. Step 3: Cross multiply
    307,891.40x = 462,312.30 × 167,923.40
  4. Step 4: Simplify right side
    307,891.40x = 77,633,053,277.82
  5. Step 5: Solve for x
    x = 77,633,053,277.82/307,891.40
  6. Step 6: Final answer
    x = 252,144.27

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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.