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Finding the Fourth Proportional to 221,358.60, 332,081.10 and 94,998.60

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Solution

The fourth proportional to 221,358.60, 332,081.10 and 94,998.60 is: 142,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,358.60 : 332,081.10 = 94,998.60 : x
  2. Step 2: Convert to fraction form
    221,358.60/332,081.10 = 94,998.60/x
  3. Step 3: Cross multiply
    221,358.60x = 332,081.10 × 94,998.60
  4. Step 4: Simplify right side
    221,358.60x = 31,547,239,586.46
  5. Step 5: Solve for x
    x = 31,547,239,586.46/221,358.60
  6. Step 6: Final answer
    x = 142,516.44

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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.