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Finding the Fourth Proportional to 231,164.77, 346,774.95 and 81,373.95

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Solution

The fourth proportional to 231,164.77, 346,774.95 and 81,373.95 is: 122,070.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,164.77 : 346,774.95 = 81,373.95 : x
  2. Step 2: Convert to fraction form
    231,164.77/346,774.95 = 81,373.95/x
  3. Step 3: Cross multiply
    231,164.77x = 346,774.95 × 81,373.95
  4. Step 4: Simplify right side
    231,164.77x = 28,218,447,442.55
  5. Step 5: Solve for x
    x = 28,218,447,442.55/231,164.77
  6. Step 6: Final answer
    x = 122,070.71

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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.