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Finding the Fourth Proportional to 110,203.20, 165,304.80 and 91,832.40

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Solution

The fourth proportional to 110,203.20, 165,304.80 and 91,832.40 is: 137,748.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,203.20 : 165,304.80 = 91,832.40 : x
  2. Step 2: Convert to fraction form
    110,203.20/165,304.80 = 91,832.40/x
  3. Step 3: Cross multiply
    110,203.20x = 165,304.80 × 91,832.40
  4. Step 4: Simplify right side
    110,203.20x = 15,180,336,515.52
  5. Step 5: Solve for x
    x = 15,180,336,515.52/110,203.20
  6. Step 6: Final answer
    x = 137,748.60

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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.