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Finding the Fourth Proportional to 110,221.65, 165,215.41 and 70,114.46

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Solution

The fourth proportional to 110,221.65, 165,215.41 and 70,114.46 is: 105,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,221.65 : 165,215.41 = 70,114.46 : x
  2. Step 2: Convert to fraction form
    110,221.65/165,215.41 = 70,114.46/x
  3. Step 3: Cross multiply
    110,221.65x = 165,215.41 × 70,114.46
  4. Step 4: Simplify right side
    110,221.65x = 11,583,989,255.83
  5. Step 5: Solve for x
    x = 11,583,989,255.83/110,221.65
  6. Step 6: Final answer
    x = 105,097.22

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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.