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Finding the Fourth Proportional to 92,502.96, 138,729.24 and 25,938.96

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Solution

The fourth proportional to 92,502.96, 138,729.24 and 25,938.96 is: 38,901.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,502.96 : 138,729.24 = 25,938.96 : x
  2. Step 2: Convert to fraction form
    92,502.96/138,729.24 = 25,938.96/x
  3. Step 3: Cross multiply
    92,502.96x = 138,729.24 × 25,938.96
  4. Step 4: Simplify right side
    92,502.96x = 3,598,492,207.19
  5. Step 5: Solve for x
    x = 3,598,492,207.19/92,502.96
  6. Step 6: Final answer
    x = 38,901.37

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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.