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Finding the Fourth Proportional to 194,903.78, 292,374.76 and 81,028.04

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Solution

The fourth proportional to 194,903.78, 292,374.76 and 81,028.04 is: 121,550.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,903.78 : 292,374.76 = 81,028.04 : x
  2. Step 2: Convert to fraction form
    194,903.78/292,374.76 = 81,028.04/x
  3. Step 3: Cross multiply
    194,903.78x = 292,374.76 × 81,028.04
  4. Step 4: Simplify right side
    194,903.78x = 23,690,553,748.27
  5. Step 5: Solve for x
    x = 23,690,553,748.27/194,903.78
  6. Step 6: Final answer
    x = 121,550.00

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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.