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Finding the Fourth Proportional to 92,516.93, 138,784.11 and 25,956.80

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Solution

The fourth proportional to 92,516.93, 138,784.11 and 25,956.80 is: 38,937.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,516.93 : 138,784.11 = 25,956.80 : x
  2. Step 2: Convert to fraction form
    92,516.93/138,784.11 = 25,956.80/x
  3. Step 3: Cross multiply
    92,516.93x = 138,784.11 × 25,956.80
  4. Step 4: Simplify right side
    92,516.93x = 3,602,391,256.66
  5. Step 5: Solve for x
    x = 3,602,391,256.66/92,516.93
  6. Step 6: Final answer
    x = 38,937.64

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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.