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Finding the Fourth Proportional to 103,157.67, 154,685.43 and 36,587.82

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Solution

The fourth proportional to 103,157.67, 154,685.43 and 36,587.82 is: 54,863.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,157.67 : 154,685.43 = 36,587.82 : x
  2. Step 2: Convert to fraction form
    103,157.67/154,685.43 = 36,587.82/x
  3. Step 3: Cross multiply
    103,157.67x = 154,685.43 × 36,587.82
  4. Step 4: Simplify right side
    103,157.67x = 5,659,602,669.46
  5. Step 5: Solve for x
    x = 5,659,602,669.46/103,157.67
  6. Step 6: Final answer
    x = 54,863.61

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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.