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Finding the Fourth Proportional to 92,326.67, 138,508.64 and 29,156.66

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Solution

The fourth proportional to 92,326.67, 138,508.64 and 29,156.66 is: 43,740.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,326.67 : 138,508.64 = 29,156.66 : x
  2. Step 2: Convert to fraction form
    92,326.67/138,508.64 = 29,156.66/x
  3. Step 3: Cross multiply
    92,326.67x = 138,508.64 × 29,156.66
  4. Step 4: Simplify right side
    92,326.67x = 4,038,448,485.22
  5. Step 5: Solve for x
    x = 4,038,448,485.22/92,326.67
  6. Step 6: Final answer
    x = 43,740.87

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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.