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Finding the Fourth Proportional to 92,505.78, 138,801.04 and 50,322.65

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Solution

The fourth proportional to 92,505.78, 138,801.04 and 50,322.65 is: 75,507.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,505.78 : 138,801.04 = 50,322.65 : x
  2. Step 2: Convert to fraction form
    92,505.78/138,801.04 = 50,322.65/x
  3. Step 3: Cross multiply
    92,505.78x = 138,801.04 × 50,322.65
  4. Step 4: Simplify right side
    92,505.78x = 6,984,835,784.71
  5. Step 5: Solve for x
    x = 6,984,835,784.71/92,505.78
  6. Step 6: Final answer
    x = 75,507.02

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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.