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Finding the Fourth Proportional to 158,677.44, 218,984.82 and 87,057.60

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Solution

The fourth proportional to 158,677.44, 218,984.82 and 87,057.60 is: 120,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,677.44 : 218,984.82 = 87,057.60 : x
  2. Step 2: Convert to fraction form
    158,677.44/218,984.82 = 87,057.60/x
  3. Step 3: Cross multiply
    158,677.44x = 218,984.82 × 87,057.60
  4. Step 4: Simplify right side
    158,677.44x = 19,064,292,865.63
  5. Step 5: Solve for x
    x = 19,064,292,865.63/158,677.44
  6. Step 6: Final answer
    x = 120,144.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.