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Finding the Fourth Proportional to 92,156.83, 138,253.70 and 28,992.85

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Solution

The fourth proportional to 92,156.83, 138,253.70 and 28,992.85 is: 43,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,156.83 : 138,253.70 = 28,992.85 : x
  2. Step 2: Convert to fraction form
    92,156.83/138,253.70 = 28,992.85/x
  3. Step 3: Cross multiply
    92,156.83x = 138,253.70 × 28,992.85
  4. Step 4: Simplify right side
    92,156.83x = 4,008,368,786.05
  5. Step 5: Solve for x
    x = 4,008,368,786.05/92,156.83
  6. Step 6: Final answer
    x = 43,495.08

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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.