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Finding the Fourth Proportional to 191,792.90, 264,672.05 and 105,759.38

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Solution

The fourth proportional to 191,792.90, 264,672.05 and 105,759.38 is: 145,946.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,792.90 : 264,672.05 = 105,759.38 : x
  2. Step 2: Convert to fraction form
    191,792.90/264,672.05 = 105,759.38/x
  3. Step 3: Cross multiply
    191,792.90x = 264,672.05 × 105,759.38
  4. Step 4: Simplify right side
    191,792.90x = 27,991,552,044.21
  5. Step 5: Solve for x
    x = 27,991,552,044.21/191,792.90
  6. Step 6: Final answer
    x = 145,946.76

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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.