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Finding the Fourth Proportional to 146,111.70, 219,189.45 and 61,871.70

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Solution

The fourth proportional to 146,111.70, 219,189.45 and 61,871.70 is: 92,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,111.70 : 219,189.45 = 61,871.70 : x
  2. Step 2: Convert to fraction form
    146,111.70/219,189.45 = 61,871.70/x
  3. Step 3: Cross multiply
    146,111.70x = 219,189.45 × 61,871.70
  4. Step 4: Simplify right side
    146,111.70x = 13,561,623,893.57
  5. Step 5: Solve for x
    x = 13,561,623,893.57/146,111.70
  6. Step 6: Final answer
    x = 92,816.82

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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.