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Finding the Fourth Proportional to 115,309.88, 172,948.09 and 44,250.40

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Solution

The fourth proportional to 115,309.88, 172,948.09 and 44,250.40 is: 66,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,309.88 : 172,948.09 = 44,250.40 : x
  2. Step 2: Convert to fraction form
    115,309.88/172,948.09 = 44,250.40/x
  3. Step 3: Cross multiply
    115,309.88x = 172,948.09 × 44,250.40
  4. Step 4: Simplify right side
    115,309.88x = 7,653,022,161.74
  5. Step 5: Solve for x
    x = 7,653,022,161.74/115,309.88
  6. Step 6: Final answer
    x = 66,369.18

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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.