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Finding the Fourth Proportional to 106,461.32, 146,879.52 and 68,241.94

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Solution

The fourth proportional to 106,461.32, 146,879.52 and 68,241.94 is: 94,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,461.32 : 146,879.52 = 68,241.94 : x
  2. Step 2: Convert to fraction form
    106,461.32/146,879.52 = 68,241.94/x
  3. Step 3: Cross multiply
    106,461.32x = 146,879.52 × 68,241.94
  4. Step 4: Simplify right side
    106,461.32x = 10,023,343,391.07
  5. Step 5: Solve for x
    x = 10,023,343,391.07/106,461.32
  6. Step 6: Final answer
    x = 94,150.10

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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.