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Finding the Fourth Proportional to 170,363.40, 255,351.30 and 103,656.48

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Solution

The fourth proportional to 170,363.40, 255,351.30 and 103,656.48 is: 155,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,363.40 : 255,351.30 = 103,656.48 : x
  2. Step 2: Convert to fraction form
    170,363.40/255,351.30 = 103,656.48/x
  3. Step 3: Cross multiply
    170,363.40x = 255,351.30 × 103,656.48
  4. Step 4: Simplify right side
    170,363.40x = 26,468,816,921.42
  5. Step 5: Solve for x
    x = 26,468,816,921.42/170,363.40
  6. Step 6: Final answer
    x = 155,366.80

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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.