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Finding the Fourth Proportional to 104,182.40, 156,109.41 and 80,547.59

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Solution

The fourth proportional to 104,182.40, 156,109.41 and 80,547.59 is: 120,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,182.40 : 156,109.41 = 80,547.59 : x
  2. Step 2: Convert to fraction form
    104,182.40/156,109.41 = 80,547.59/x
  3. Step 3: Cross multiply
    104,182.40x = 156,109.41 × 80,547.59
  4. Step 4: Simplify right side
    104,182.40x = 12,574,235,971.27
  5. Step 5: Solve for x
    x = 12,574,235,971.27/104,182.40
  6. Step 6: Final answer
    x = 120,694.44

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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.