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Finding the Fourth Proportional to 168,980.20, 253,470.30 and 106,925.80

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Solution

The fourth proportional to 168,980.20, 253,470.30 and 106,925.80 is: 160,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,980.20 : 253,470.30 = 106,925.80 : x
  2. Step 2: Convert to fraction form
    168,980.20/253,470.30 = 106,925.80/x
  3. Step 3: Cross multiply
    168,980.20x = 253,470.30 × 106,925.80
  4. Step 4: Simplify right side
    168,980.20x = 27,102,514,603.74
  5. Step 5: Solve for x
    x = 27,102,514,603.74/168,980.20
  6. Step 6: Final answer
    x = 160,388.70

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1.5x scale

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.