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Finding the Fourth Proportional to 71,956.98, 107,925.74 and 19,369.62

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Solution

The fourth proportional to 71,956.98, 107,925.74 and 19,369.62 is: 29,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,956.98 : 107,925.74 = 19,369.62 : x
  2. Step 2: Convert to fraction form
    71,956.98/107,925.74 = 19,369.62/x
  3. Step 3: Cross multiply
    71,956.98x = 107,925.74 × 19,369.62
  4. Step 4: Simplify right side
    71,956.98x = 2,090,480,572.02
  5. Step 5: Solve for x
    x = 2,090,480,572.02/71,956.98
  6. Step 6: Final answer
    x = 29,051.81

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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.