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Finding the Fourth Proportional to 174,856.80, 261,680.40 and 104,786.40

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Solution

The fourth proportional to 174,856.80, 261,680.40 and 104,786.40 is: 156,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,856.80 : 261,680.40 = 104,786.40 : x
  2. Step 2: Convert to fraction form
    174,856.80/261,680.40 = 104,786.40/x
  3. Step 3: Cross multiply
    174,856.80x = 261,680.40 × 104,786.40
  4. Step 4: Simplify right side
    174,856.80x = 27,420,547,066.56
  5. Step 5: Solve for x
    x = 27,420,547,066.56/174,856.80
  6. Step 6: Final answer
    x = 156,817.16

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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.