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Finding the Fourth Proportional to 92,156.45, 138,253.13 and 28,992.47

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Solution

The fourth proportional to 92,156.45, 138,253.13 and 28,992.47 is: 43,494.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,156.45 : 138,253.13 = 28,992.47 : x
  2. Step 2: Convert to fraction form
    92,156.45/138,253.13 = 28,992.47/x
  3. Step 3: Cross multiply
    92,156.45x = 138,253.13 × 28,992.47
  4. Step 4: Simplify right side
    92,156.45x = 4,008,299,723.93
  5. Step 5: Solve for x
    x = 4,008,299,723.93/92,156.45
  6. Step 6: Final answer
    x = 43,494.51

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1.5x scale

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.