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Finding the Fourth Proportional to 202,762.02, 279,787.16 and 112,105.74

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Solution

The fourth proportional to 202,762.02, 279,787.16 and 112,105.74 is: 154,692.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,762.02 : 279,787.16 = 112,105.74 : x
  2. Step 2: Convert to fraction form
    202,762.02/279,787.16 = 112,105.74/x
  3. Step 3: Cross multiply
    202,762.02x = 279,787.16 × 112,105.74
  4. Step 4: Simplify right side
    202,762.02x = 31,365,746,614.30
  5. Step 5: Solve for x
    x = 31,365,746,614.30/202,762.02
  6. Step 6: Final answer
    x = 154,692.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.