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Finding the Fourth Proportional to 245,675.53, 368,138.05 and 165,417.05

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Solution

The fourth proportional to 245,675.53, 368,138.05 and 165,417.05 is: 247,872.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,675.53 : 368,138.05 = 165,417.05 : x
  2. Step 2: Convert to fraction form
    245,675.53/368,138.05 = 165,417.05/x
  3. Step 3: Cross multiply
    245,675.53x = 368,138.05 × 165,417.05
  4. Step 4: Simplify right side
    245,675.53x = 60,896,310,730.56
  5. Step 5: Solve for x
    x = 60,896,310,730.56/245,675.53
  6. Step 6: Final answer
    x = 247,872.92

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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.