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Finding the Fourth Proportional to 536,908.95, 805,344.80 and 137,553.71

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Solution

The fourth proportional to 536,908.95, 805,344.80 and 137,553.71 is: 206,325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,908.95 : 805,344.80 = 137,553.71 : x
  2. Step 2: Convert to fraction form
    536,908.95/805,344.80 = 137,553.71/x
  3. Step 3: Cross multiply
    536,908.95x = 805,344.80 × 137,553.71
  4. Step 4: Simplify right side
    536,908.95x = 110,778,160,354.72
  5. Step 5: Solve for x
    x = 110,778,160,354.72/536,908.95
  6. Step 6: Final answer
    x = 206,325.78

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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.