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Finding the Fourth Proportional to 73,247.40, 109,871.10 and 48,315.60

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Solution

The fourth proportional to 73,247.40, 109,871.10 and 48,315.60 is: 72,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,247.40 : 109,871.10 = 48,315.60 : x
  2. Step 2: Convert to fraction form
    73,247.40/109,871.10 = 48,315.60/x
  3. Step 3: Cross multiply
    73,247.40x = 109,871.10 × 48,315.60
  4. Step 4: Simplify right side
    73,247.40x = 5,308,488,119.16
  5. Step 5: Solve for x
    x = 5,308,488,119.16/73,247.40
  6. Step 6: Final answer
    x = 72,473.40

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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.