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Finding the Fourth Proportional to 108,616.20, 162,794.70 and 97,470.60

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Solution

The fourth proportional to 108,616.20, 162,794.70 and 97,470.60 is: 146,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,616.20 : 162,794.70 = 97,470.60 : x
  2. Step 2: Convert to fraction form
    108,616.20/162,794.70 = 97,470.60/x
  3. Step 3: Cross multiply
    108,616.20x = 162,794.70 × 97,470.60
  4. Step 4: Simplify right side
    108,616.20x = 15,867,697,085.82
  5. Step 5: Solve for x
    x = 15,867,697,085.82/108,616.20
  6. Step 6: Final answer
    x = 146,089.60

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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.