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Finding the Fourth Proportional to 73,154.10, 109,657.71 and 49,791.54

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Solution

The fourth proportional to 73,154.10, 109,657.71 and 49,791.54 is: 74,637.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,154.10 : 109,657.71 = 49,791.54 : x
  2. Step 2: Convert to fraction form
    73,154.10/109,657.71 = 49,791.54/x
  3. Step 3: Cross multiply
    73,154.10x = 109,657.71 × 49,791.54
  4. Step 4: Simplify right side
    73,154.10x = 5,460,026,253.77
  5. Step 5: Solve for x
    x = 5,460,026,253.77/73,154.10
  6. Step 6: Final answer
    x = 74,637.32

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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.