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Finding the Fourth Proportional to 221,828.80, 332,786.40 and 64,062.40

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Solution

The fourth proportional to 221,828.80, 332,786.40 and 64,062.40 is: 96,106.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,828.80 : 332,786.40 = 64,062.40 : x
  2. Step 2: Convert to fraction form
    221,828.80/332,786.40 = 64,062.40/x
  3. Step 3: Cross multiply
    221,828.80x = 332,786.40 × 64,062.40
  4. Step 4: Simplify right side
    221,828.80x = 21,319,095,471.36
  5. Step 5: Solve for x
    x = 21,319,095,471.36/221,828.80
  6. Step 6: Final answer
    x = 96,106.08

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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.