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Finding the Fourth Proportional to 161,704.80, 242,569.80 and 43,374.96

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Solution

The fourth proportional to 161,704.80, 242,569.80 and 43,374.96 is: 65,065.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,704.80 : 242,569.80 = 43,374.96 : x
  2. Step 2: Convert to fraction form
    161,704.80/242,569.80 = 43,374.96/x
  3. Step 3: Cross multiply
    161,704.80x = 242,569.80 × 43,374.96
  4. Step 4: Simplify right side
    161,704.80x = 10,521,455,372.21
  5. Step 5: Solve for x
    x = 10,521,455,372.21/161,704.80
  6. Step 6: Final answer
    x = 65,065.82

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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.