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Finding the Fourth Proportional to 92,651.64, 138,985.66 and 26,092.36

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Solution

The fourth proportional to 92,651.64, 138,985.66 and 26,092.36 is: 39,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,651.64 : 138,985.66 = 26,092.36 : x
  2. Step 2: Convert to fraction form
    92,651.64/138,985.66 = 26,092.36/x
  3. Step 3: Cross multiply
    92,651.64x = 138,985.66 × 26,092.36
  4. Step 4: Simplify right side
    92,651.64x = 3,626,463,875.56
  5. Step 5: Solve for x
    x = 3,626,463,875.56/92,651.64
  6. Step 6: Final answer
    x = 39,140.85

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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.