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Finding the Fourth Proportional to 112,806.96, 169,207.20 and 37,931.37

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Solution

The fourth proportional to 112,806.96, 169,207.20 and 37,931.37 is: 56,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,806.96 : 169,207.20 = 37,931.37 : x
  2. Step 2: Convert to fraction form
    112,806.96/169,207.20 = 37,931.37/x
  3. Step 3: Cross multiply
    112,806.96x = 169,207.20 × 37,931.37
  4. Step 4: Simplify right side
    112,806.96x = 6,418,260,909.86
  5. Step 5: Solve for x
    x = 6,418,260,909.86/112,806.96
  6. Step 6: Final answer
    x = 56,895.97

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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.