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Finding the Fourth Proportional to 115,473.79, 173,228.10 and 48,914.20

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Solution

The fourth proportional to 115,473.79, 173,228.10 and 48,914.20 is: 73,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,473.79 : 173,228.10 = 48,914.20 : x
  2. Step 2: Convert to fraction form
    115,473.79/173,228.10 = 48,914.20/x
  3. Step 3: Cross multiply
    115,473.79x = 173,228.10 × 48,914.20
  4. Step 4: Simplify right side
    115,473.79x = 8,473,313,929.02
  5. Step 5: Solve for x
    x = 8,473,313,929.02/115,473.79
  6. Step 6: Final answer
    x = 73,378.68

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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.