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Finding the Fourth Proportional to 96,648.50, 133,375.17 and 56,389.94

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Solution

The fourth proportional to 96,648.50, 133,375.17 and 56,389.94 is: 77,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,648.50 : 133,375.17 = 56,389.94 : x
  2. Step 2: Convert to fraction form
    96,648.50/133,375.17 = 56,389.94/x
  3. Step 3: Cross multiply
    96,648.50x = 133,375.17 × 56,389.94
  4. Step 4: Simplify right side
    96,648.50x = 7,521,017,833.79
  5. Step 5: Solve for x
    x = 7,521,017,833.79/96,648.50
  6. Step 6: Final answer
    x = 77,818.26

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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.