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Finding the Fourth Proportional to 118,066.01, 177,074.10 and 43,221.20

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Solution

The fourth proportional to 118,066.01, 177,074.10 and 43,221.20 is: 64,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,066.01 : 177,074.10 = 43,221.20 : x
  2. Step 2: Convert to fraction form
    118,066.01/177,074.10 = 43,221.20/x
  3. Step 3: Cross multiply
    118,066.01x = 177,074.10 × 43,221.20
  4. Step 4: Simplify right side
    118,066.01x = 7,653,354,205.55
  5. Step 5: Solve for x
    x = 7,653,354,205.55/118,066.01
  6. Step 6: Final answer
    x = 64,822.67

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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.