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Finding the Fourth Proportional to 110,400.90, 165,622.95 and 47,220.90

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Solution

The fourth proportional to 110,400.90, 165,622.95 and 47,220.90 is: 70,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,400.90 : 165,622.95 = 47,220.90 : x
  2. Step 2: Convert to fraction form
    110,400.90/165,622.95 = 47,220.90/x
  3. Step 3: Cross multiply
    110,400.90x = 165,622.95 × 47,220.90
  4. Step 4: Simplify right side
    110,400.90x = 7,820,864,759.66
  5. Step 5: Solve for x
    x = 7,820,864,759.66/110,400.90
  6. Step 6: Final answer
    x = 70,840.59

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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.