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Finding the Fourth Proportional to 60,989.60, 84,207.12 and 46,817.44

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Solution

The fourth proportional to 60,989.60, 84,207.12 and 46,817.44 is: 64,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,989.60 : 84,207.12 = 46,817.44 : x
  2. Step 2: Convert to fraction form
    60,989.60/84,207.12 = 46,817.44/x
  3. Step 3: Cross multiply
    60,989.60x = 84,207.12 × 46,817.44
  4. Step 4: Simplify right side
    60,989.60x = 3,942,361,788.17
  5. Step 5: Solve for x
    x = 3,942,361,788.17/60,989.60
  6. Step 6: Final answer
    x = 64,639.90

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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.