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Finding the Fourth Proportional to 221,368.90, 332,017.71 and 63,561.46

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Solution

The fourth proportional to 221,368.90, 332,017.71 and 63,561.46 is: 95,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,368.90 : 332,017.71 = 63,561.46 : x
  2. Step 2: Convert to fraction form
    221,368.90/332,017.71 = 63,561.46/x
  3. Step 3: Cross multiply
    221,368.90x = 332,017.71 × 63,561.46
  4. Step 4: Simplify right side
    221,368.90x = 21,103,530,393.46
  5. Step 5: Solve for x
    x = 21,103,530,393.46/221,368.90
  6. Step 6: Final answer
    x = 95,331.96

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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.