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Finding the Fourth Proportional to 536,656.61, 804,979.24 and 137,294.21

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Solution

The fourth proportional to 536,656.61, 804,979.24 and 137,294.21 is: 205,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,656.61 : 804,979.24 = 137,294.21 : x
  2. Step 2: Convert to fraction form
    536,656.61/804,979.24 = 137,294.21/x
  3. Step 3: Cross multiply
    536,656.61x = 804,979.24 × 137,294.21
  4. Step 4: Simplify right side
    536,656.61x = 110,518,990,491.41
  5. Step 5: Solve for x
    x = 110,518,990,491.41/536,656.61
  6. Step 6: Final answer
    x = 205,939.87

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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.