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Finding the Fourth Proportional to 92,715.17, 138,978.95 and 36,533.43

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Solution

The fourth proportional to 92,715.17, 138,978.95 and 36,533.43 is: 54,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,715.17 : 138,978.95 = 36,533.43 : x
  2. Step 2: Convert to fraction form
    92,715.17/138,978.95 = 36,533.43/x
  3. Step 3: Cross multiply
    92,715.17x = 138,978.95 × 36,533.43
  4. Step 4: Simplify right side
    92,715.17x = 5,077,377,558.63
  5. Step 5: Solve for x
    x = 5,077,377,558.63/92,715.17
  6. Step 6: Final answer
    x = 54,763.18

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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.