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Finding the Fourth Proportional to 106,197.92, 146,529.60 and 61,460

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Solution

The fourth proportional to 106,197.92, 146,529.60 and 61,460 is: 84,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,197.92 : 146,529.60 = 61,460 : x
  2. Step 2: Convert to fraction form
    106,197.92/146,529.60 = 61,460/x
  3. Step 3: Cross multiply
    106,197.92x = 146,529.60 × 61,460
  4. Step 4: Simplify right side
    106,197.92x = 9,005,709,216
  5. Step 5: Solve for x
    x = 9,005,709,216/106,197.92
  6. Step 6: Final answer
    x = 84,801.18

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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.