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Finding the Fourth Proportional to 146,124.60, 219,417.30 and 83,916.60

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Solution

The fourth proportional to 146,124.60, 219,417.30 and 83,916.60 is: 126,007.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,124.60 : 219,417.30 = 83,916.60 : x
  2. Step 2: Convert to fraction form
    146,124.60/219,417.30 = 83,916.60/x
  3. Step 3: Cross multiply
    146,124.60x = 219,417.30 × 83,916.60
  4. Step 4: Simplify right side
    146,124.60x = 18,412,753,797.18
  5. Step 5: Solve for x
    x = 18,412,753,797.18/146,124.60
  6. Step 6: Final answer
    x = 126,007.21

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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.