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Finding the Fourth Proportional to 223,881.40, 335,822.10 and 221,807.80

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Solution

The fourth proportional to 223,881.40, 335,822.10 and 221,807.80 is: 332,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,881.40 : 335,822.10 = 221,807.80 : x
  2. Step 2: Convert to fraction form
    223,881.40/335,822.10 = 221,807.80/x
  3. Step 3: Cross multiply
    223,881.40x = 335,822.10 × 221,807.80
  4. Step 4: Simplify right side
    223,881.40x = 74,487,961,192.38
  5. Step 5: Solve for x
    x = 74,487,961,192.38/223,881.40
  6. Step 6: Final answer
    x = 332,711.70

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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.