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Finding the Fourth Proportional to 437,218.56, 655,845.12 and 121,703.04

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Solution

The fourth proportional to 437,218.56, 655,845.12 and 121,703.04 is: 182,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,218.56 : 655,845.12 = 121,703.04 : x
  2. Step 2: Convert to fraction form
    437,218.56/655,845.12 = 121,703.04/x
  3. Step 3: Cross multiply
    437,218.56x = 655,845.12 × 121,703.04
  4. Step 4: Simplify right side
    437,218.56x = 79,818,344,873.16
  5. Step 5: Solve for x
    x = 79,818,344,873.16/437,218.56
  6. Step 6: Final answer
    x = 182,559.37

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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.