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Finding the Fourth Proportional to 537,131.34, 805,697.19 and 137,772.07

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Solution

The fourth proportional to 537,131.34, 805,697.19 and 137,772.07 is: 206,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,131.34 : 805,697.19 = 137,772.07 : x
  2. Step 2: Convert to fraction form
    537,131.34/805,697.19 = 137,772.07/x
  3. Step 3: Cross multiply
    537,131.34x = 805,697.19 × 137,772.07
  4. Step 4: Simplify right side
    537,131.34x = 111,002,569,659.48
  5. Step 5: Solve for x
    x = 111,002,569,659.48/537,131.34
  6. Step 6: Final answer
    x = 206,658.15

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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.