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Finding the Fourth Proportional to 66,192.94, 99,300.30 and 21,822.34

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Solution

The fourth proportional to 66,192.94, 99,300.30 and 21,822.34 is: 32,737.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,192.94 : 99,300.30 = 21,822.34 : x
  2. Step 2: Convert to fraction form
    66,192.94/99,300.30 = 21,822.34/x
  3. Step 3: Cross multiply
    66,192.94x = 99,300.30 × 21,822.34
  4. Step 4: Simplify right side
    66,192.94x = 2,166,964,908.70
  5. Step 5: Solve for x
    x = 2,166,964,908.70/66,192.94
  6. Step 6: Final answer
    x = 32,737.10

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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.