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Finding the Fourth Proportional to 110,266.40, 165,421.20 and 47,086.40

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Solution

The fourth proportional to 110,266.40, 165,421.20 and 47,086.40 is: 70,638.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,266.40 : 165,421.20 = 47,086.40 : x
  2. Step 2: Convert to fraction form
    110,266.40/165,421.20 = 47,086.40/x
  3. Step 3: Cross multiply
    110,266.40x = 165,421.20 × 47,086.40
  4. Step 4: Simplify right side
    110,266.40x = 7,789,088,791.68
  5. Step 5: Solve for x
    x = 7,789,088,791.68/110,266.40
  6. Step 6: Final answer
    x = 70,638.82

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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.