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Finding the Fourth Proportional to 194,664.64, 291,818.40 and 127,998.40

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Solution

The fourth proportional to 194,664.64, 291,818.40 and 127,998.40 is: 191,880.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,664.64 : 291,818.40 = 127,998.40 : x
  2. Step 2: Convert to fraction form
    194,664.64/291,818.40 = 127,998.40/x
  3. Step 3: Cross multiply
    194,664.64x = 291,818.40 × 127,998.40
  4. Step 4: Simplify right side
    194,664.64x = 37,352,288,290.56
  5. Step 5: Solve for x
    x = 37,352,288,290.56/194,664.64
  6. Step 6: Final answer
    x = 191,880.19

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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.