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Finding the Fourth Proportional to 106,161.61, 146,486.30 and 60,830.87

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Solution

The fourth proportional to 106,161.61, 146,486.30 and 60,830.87 is: 83,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,161.61 : 146,486.30 = 60,830.87 : x
  2. Step 2: Convert to fraction form
    106,161.61/146,486.30 = 60,830.87/x
  3. Step 3: Cross multiply
    106,161.61x = 146,486.30 × 60,830.87
  4. Step 4: Simplify right side
    106,161.61x = 8,910,889,072.08
  5. Step 5: Solve for x
    x = 8,910,889,072.08/106,161.61
  6. Step 6: Final answer
    x = 83,937.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.