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Finding the Fourth Proportional to 191,702.70, 287,882.10 and 185,797.80

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Solution

The fourth proportional to 191,702.70, 287,882.10 and 185,797.80 is: 279,014.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,702.70 : 287,882.10 = 185,797.80 : x
  2. Step 2: Convert to fraction form
    191,702.70/287,882.10 = 185,797.80/x
  3. Step 3: Cross multiply
    191,702.70x = 287,882.10 × 185,797.80
  4. Step 4: Simplify right side
    191,702.70x = 53,487,860,839.38
  5. Step 5: Solve for x
    x = 53,487,860,839.38/191,702.70
  6. Step 6: Final answer
    x = 279,014.65

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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.