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Finding the Fourth Proportional to 384,787.91, 577,181.87 and 104,305.16

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Solution

The fourth proportional to 384,787.91, 577,181.87 and 104,305.16 is: 156,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,787.91 : 577,181.87 = 104,305.16 : x
  2. Step 2: Convert to fraction form
    384,787.91/577,181.87 = 104,305.16/x
  3. Step 3: Cross multiply
    384,787.91x = 577,181.87 × 104,305.16
  4. Step 4: Simplify right side
    384,787.91x = 60,203,047,299.45
  5. Step 5: Solve for x
    x = 60,203,047,299.45/384,787.91
  6. Step 6: Final answer
    x = 156,457.74

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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.