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Finding the Fourth Proportional to 174,186.48, 261,279.72 and 42,858.48

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Solution

The fourth proportional to 174,186.48, 261,279.72 and 42,858.48 is: 64,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,186.48 : 261,279.72 = 42,858.48 : x
  2. Step 2: Convert to fraction form
    174,186.48/261,279.72 = 42,858.48/x
  3. Step 3: Cross multiply
    174,186.48x = 261,279.72 × 42,858.48
  4. Step 4: Simplify right side
    174,186.48x = 11,198,051,654.03
  5. Step 5: Solve for x
    x = 11,198,051,654.03/174,186.48
  6. Step 6: Final answer
    x = 64,287.72

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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.