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Finding the Fourth Proportional to 181,307.88, 250,221.78 and 109,705.56

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Solution

The fourth proportional to 181,307.88, 250,221.78 and 109,705.56 is: 151,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,307.88 : 250,221.78 = 109,705.56 : x
  2. Step 2: Convert to fraction form
    181,307.88/250,221.78 = 109,705.56/x
  3. Step 3: Cross multiply
    181,307.88x = 250,221.78 × 109,705.56
  4. Step 4: Simplify right side
    181,307.88x = 27,450,720,499.10
  5. Step 5: Solve for x
    x = 27,450,720,499.10/181,307.88
  6. Step 6: Final answer
    x = 151,403.90

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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.