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Finding the Fourth Proportional to 110,416.01, 165,410.17 and 66,077.69

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Solution

The fourth proportional to 110,416.01, 165,410.17 and 66,077.69 is: 98,988.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,416.01 : 165,410.17 = 66,077.69 : x
  2. Step 2: Convert to fraction form
    110,416.01/165,410.17 = 66,077.69/x
  3. Step 3: Cross multiply
    110,416.01x = 165,410.17 × 66,077.69
  4. Step 4: Simplify right side
    110,416.01x = 10,929,920,943.86
  5. Step 5: Solve for x
    x = 10,929,920,943.86/110,416.01
  6. Step 6: Final answer
    x = 98,988.56

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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.