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Finding the Fourth Proportional to 110,215.60, 165,323.40 and 70,849.60

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Solution

The fourth proportional to 110,215.60, 165,323.40 and 70,849.60 is: 106,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,215.60 : 165,323.40 = 70,849.60 : x
  2. Step 2: Convert to fraction form
    110,215.60/165,323.40 = 70,849.60/x
  3. Step 3: Cross multiply
    110,215.60x = 165,323.40 × 70,849.60
  4. Step 4: Simplify right side
    110,215.60x = 11,713,096,760.64
  5. Step 5: Solve for x
    x = 11,713,096,760.64/110,215.60
  6. Step 6: Final answer
    x = 106,274.40

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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.