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Finding the Fourth Proportional to 115,601.40, 173,402.10 and 84,497.40

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Solution

The fourth proportional to 115,601.40, 173,402.10 and 84,497.40 is: 126,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,601.40 : 173,402.10 = 84,497.40 : x
  2. Step 2: Convert to fraction form
    115,601.40/173,402.10 = 84,497.40/x
  3. Step 3: Cross multiply
    115,601.40x = 173,402.10 × 84,497.40
  4. Step 4: Simplify right side
    115,601.40x = 14,652,026,604.54
  5. Step 5: Solve for x
    x = 14,652,026,604.54/115,601.40
  6. Step 6: Final answer
    x = 126,746.10

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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.