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Finding the Fourth Proportional to 191,795.20, 287,714.40 and 58,674.40

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Solution

The fourth proportional to 191,795.20, 287,714.40 and 58,674.40 is: 88,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,795.20 : 287,714.40 = 58,674.40 : x
  2. Step 2: Convert to fraction form
    191,795.20/287,714.40 = 58,674.40/x
  3. Step 3: Cross multiply
    191,795.20x = 287,714.40 × 58,674.40
  4. Step 4: Simplify right side
    191,795.20x = 16,881,469,791.36
  5. Step 5: Solve for x
    x = 16,881,469,791.36/191,795.20
  6. Step 6: Final answer
    x = 88,018.21

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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.