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Finding the Fourth Proportional to 101,916.01, 152,874.02 and 31,800.79

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Solution

The fourth proportional to 101,916.01, 152,874.02 and 31,800.79 is: 47,701.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,916.01 : 152,874.02 = 31,800.79 : x
  2. Step 2: Convert to fraction form
    101,916.01/152,874.02 = 31,800.79/x
  3. Step 3: Cross multiply
    101,916.01x = 152,874.02 × 31,800.79
  4. Step 4: Simplify right side
    101,916.01x = 4,861,514,606.48
  5. Step 5: Solve for x
    x = 4,861,514,606.48/101,916.01
  6. Step 6: Final answer
    x = 47,701.19

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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.