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Finding the Fourth Proportional to 262,732.50, 362,572.29 and 143,500.50

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Solution

The fourth proportional to 262,732.50, 362,572.29 and 143,500.50 is: 198,031.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,732.50 : 362,572.29 = 143,500.50 : x
  2. Step 2: Convert to fraction form
    262,732.50/362,572.29 = 143,500.50/x
  3. Step 3: Cross multiply
    262,732.50x = 362,572.29 × 143,500.50
  4. Step 4: Simplify right side
    262,732.50x = 52,029,304,901.15
  5. Step 5: Solve for x
    x = 52,029,304,901.15/262,732.50
  6. Step 6: Final answer
    x = 198,031.48

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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.