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Finding the Fourth Proportional to 165,331.40, 247,924.20 and 65,458.40

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Solution

The fourth proportional to 165,331.40, 247,924.20 and 65,458.40 is: 98,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,331.40 : 247,924.20 = 65,458.40 : x
  2. Step 2: Convert to fraction form
    165,331.40/247,924.20 = 65,458.40/x
  3. Step 3: Cross multiply
    165,331.40x = 247,924.20 × 65,458.40
  4. Step 4: Simplify right side
    165,331.40x = 16,228,721,453.28
  5. Step 5: Solve for x
    x = 16,228,721,453.28/165,331.40
  6. Step 6: Final answer
    x = 98,158.74

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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.