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Finding the Fourth Proportional to 175,679.87, 242,846.81 and 156,747.29

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Solution

The fourth proportional to 175,679.87, 242,846.81 and 156,747.29 is: 216,675.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,679.87 : 242,846.81 = 156,747.29 : x
  2. Step 2: Convert to fraction form
    175,679.87/242,846.81 = 156,747.29/x
  3. Step 3: Cross multiply
    175,679.87x = 242,846.81 × 156,747.29
  4. Step 4: Simplify right side
    175,679.87x = 38,065,579,352.64
  5. Step 5: Solve for x
    x = 38,065,579,352.64/175,679.87
  6. Step 6: Final answer
    x = 216,675.82

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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.