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Finding the Fourth Proportional to 191,792.72, 264,787.36 and 170,513.10

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Solution

The fourth proportional to 191,792.72, 264,787.36 and 170,513.10 is: 235,408.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,792.72 : 264,787.36 = 170,513.10 : x
  2. Step 2: Convert to fraction form
    191,792.72/264,787.36 = 170,513.10/x
  3. Step 3: Cross multiply
    191,792.72x = 264,787.36 × 170,513.10
  4. Step 4: Simplify right side
    191,792.72x = 45,149,713,168.13
  5. Step 5: Solve for x
    x = 45,149,713,168.13/191,792.72
  6. Step 6: Final answer
    x = 235,408.90

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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.