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Finding the Fourth Proportional to 170,472, 255,756.60 and 58,177.20

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Solution

The fourth proportional to 170,472, 255,756.60 and 58,177.20 is: 87,282.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,472 : 255,756.60 = 58,177.20 : x
  2. Step 2: Convert to fraction form
    170,472/255,756.60 = 58,177.20/x
  3. Step 3: Cross multiply
    170,472x = 255,756.60 × 58,177.20
  4. Step 4: Simplify right side
    170,472x = 14,879,202,869.52
  5. Step 5: Solve for x
    x = 14,879,202,869.52/170,472
  6. Step 6: Final answer
    x = 87,282.39

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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.