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Finding the Fourth Proportional to 48,309.60, 67,725.60 and 48,309.60

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Solution

The fourth proportional to 48,309.60, 67,725.60 and 48,309.60 is: 67,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,309.60 : 67,725.60 = 48,309.60 : x
  2. Step 2: Convert to fraction form
    48,309.60/67,725.60 = 48,309.60/x
  3. Step 3: Cross multiply
    48,309.60x = 67,725.60 × 48,309.60
  4. Step 4: Simplify right side
    48,309.60x = 3,271,796,645.76
  5. Step 5: Solve for x
    x = 3,271,796,645.76/48,309.60
  6. Step 6: Final answer
    x = 67,725.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.