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Finding the Fourth Proportional to 174,853.20, 262,279.80 and 155,170.20

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Solution

The fourth proportional to 174,853.20, 262,279.80 and 155,170.20 is: 232,755.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,853.20 : 262,279.80 = 155,170.20 : x
  2. Step 2: Convert to fraction form
    174,853.20/262,279.80 = 155,170.20/x
  3. Step 3: Cross multiply
    174,853.20x = 262,279.80 × 155,170.20
  4. Step 4: Simplify right side
    174,853.20x = 40,698,009,021.96
  5. Step 5: Solve for x
    x = 40,698,009,021.96/174,853.20
  6. Step 6: Final answer
    x = 232,755.30

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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.