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Finding the Fourth Proportional to 92,294.79, 138,445.16 and 29,115.51

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Solution

The fourth proportional to 92,294.79, 138,445.16 and 29,115.51 is: 43,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,294.79 : 138,445.16 = 29,115.51 : x
  2. Step 2: Convert to fraction form
    92,294.79/138,445.16 = 29,115.51/x
  3. Step 3: Cross multiply
    92,294.79x = 138,445.16 × 29,115.51
  4. Step 4: Simplify right side
    92,294.79x = 4,030,901,294.85
  5. Step 5: Solve for x
    x = 4,030,901,294.85/92,294.79
  6. Step 6: Final answer
    x = 43,674.20

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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.