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Finding the Fourth Proportional to 78,984.93, 118,375.34 and 59,107.53

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Solution

The fourth proportional to 78,984.93, 118,375.34 and 59,107.53 is: 88,584.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,984.93 : 118,375.34 = 59,107.53 : x
  2. Step 2: Convert to fraction form
    78,984.93/118,375.34 = 59,107.53/x
  3. Step 3: Cross multiply
    78,984.93x = 118,375.34 × 59,107.53
  4. Step 4: Simplify right side
    78,984.93x = 6,996,873,664.77
  5. Step 5: Solve for x
    x = 6,996,873,664.77/78,984.93
  6. Step 6: Final answer
    x = 88,584.92

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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.