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Finding the Fourth Proportional to 191,676.60, 287,570.43 and 79,336.08

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Solution

The fourth proportional to 191,676.60, 287,570.43 and 79,336.08 is: 119,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,676.60 : 287,570.43 = 79,336.08 : x
  2. Step 2: Convert to fraction form
    191,676.60/287,570.43 = 79,336.08/x
  3. Step 3: Cross multiply
    191,676.60x = 287,570.43 × 79,336.08
  4. Step 4: Simplify right side
    191,676.60x = 22,814,710,640.11
  5. Step 5: Solve for x
    x = 22,814,710,640.11/191,676.60
  6. Step 6: Final answer
    x = 119,027.10

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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.