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Finding the Fourth Proportional to 79,794.40, 119,691.60 and 48,690.40

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Solution

The fourth proportional to 79,794.40, 119,691.60 and 48,690.40 is: 73,035.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,794.40 : 119,691.60 = 48,690.40 : x
  2. Step 2: Convert to fraction form
    79,794.40/119,691.60 = 48,690.40/x
  3. Step 3: Cross multiply
    79,794.40x = 119,691.60 × 48,690.40
  4. Step 4: Simplify right side
    79,794.40x = 5,827,831,880.64
  5. Step 5: Solve for x
    x = 5,827,831,880.64/79,794.40
  6. Step 6: Final answer
    x = 73,035.60

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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.