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Finding the Fourth Proportional to 84,381.68, 126,609.38 and 37,007.01

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Solution

The fourth proportional to 84,381.68, 126,609.38 and 37,007.01 is: 55,526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,381.68 : 126,609.38 = 37,007.01 : x
  2. Step 2: Convert to fraction form
    84,381.68/126,609.38 = 37,007.01/x
  3. Step 3: Cross multiply
    84,381.68x = 126,609.38 × 37,007.01
  4. Step 4: Simplify right side
    84,381.68x = 4,685,434,406.72
  5. Step 5: Solve for x
    x = 4,685,434,406.72/84,381.68
  6. Step 6: Final answer
    x = 55,526.68

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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.