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Finding the Fourth Proportional to 97,734.90, 146,383.65 and 84,612.90

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Solution

The fourth proportional to 97,734.90, 146,383.65 and 84,612.90 is: 126,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,734.90 : 146,383.65 = 84,612.90 : x
  2. Step 2: Convert to fraction form
    97,734.90/146,383.65 = 84,612.90/x
  3. Step 3: Cross multiply
    97,734.90x = 146,383.65 × 84,612.90
  4. Step 4: Simplify right side
    97,734.90x = 12,385,945,139.09
  5. Step 5: Solve for x
    x = 12,385,945,139.09/97,734.90
  6. Step 6: Final answer
    x = 126,730.01

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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.