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Finding the Fourth Proportional to 110,421.78, 165,659.08 and 35,548.92

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Solution

The fourth proportional to 110,421.78, 165,659.08 and 35,548.92 is: 53,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,421.78 : 165,659.08 = 35,548.92 : x
  2. Step 2: Convert to fraction form
    110,421.78/165,659.08 = 35,548.92/x
  3. Step 3: Cross multiply
    110,421.78x = 165,659.08 × 35,548.92
  4. Step 4: Simplify right side
    110,421.78x = 5,889,001,382.19
  5. Step 5: Solve for x
    x = 5,889,001,382.19/110,421.78
  6. Step 6: Final answer
    x = 53,331.88

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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.