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Finding the Fourth Proportional to 110,016.80, 165,025.20 and 70,618.40

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Solution

The fourth proportional to 110,016.80, 165,025.20 and 70,618.40 is: 105,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,016.80 : 165,025.20 = 70,618.40 : x
  2. Step 2: Convert to fraction form
    110,016.80/165,025.20 = 70,618.40/x
  3. Step 3: Cross multiply
    110,016.80x = 165,025.20 × 70,618.40
  4. Step 4: Simplify right side
    110,016.80x = 11,653,815,583.68
  5. Step 5: Solve for x
    x = 11,653,815,583.68/110,016.80
  6. Step 6: Final answer
    x = 105,927.60

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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.