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Finding the Fourth Proportional to 160,028.62, 240,193.59 and 81,199.42

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Solution

The fourth proportional to 160,028.62, 240,193.59 and 81,199.42 is: 121,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,028.62 : 240,193.59 = 81,199.42 : x
  2. Step 2: Convert to fraction form
    160,028.62/240,193.59 = 81,199.42/x
  3. Step 3: Cross multiply
    160,028.62x = 240,193.59 × 81,199.42
  4. Step 4: Simplify right side
    160,028.62x = 19,503,579,290.74
  5. Step 5: Solve for x
    x = 19,503,579,290.74/160,028.62
  6. Step 6: Final answer
    x = 121,875.57

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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.