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Finding the Fourth Proportional to 73,930.10, 110,895.15 and 61,464.20

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Solution

The fourth proportional to 73,930.10, 110,895.15 and 61,464.20 is: 92,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,930.10 : 110,895.15 = 61,464.20 : x
  2. Step 2: Convert to fraction form
    73,930.10/110,895.15 = 61,464.20/x
  3. Step 3: Cross multiply
    73,930.10x = 110,895.15 × 61,464.20
  4. Step 4: Simplify right side
    73,930.10x = 6,816,081,678.63
  5. Step 5: Solve for x
    x = 6,816,081,678.63/73,930.10
  6. Step 6: Final answer
    x = 92,196.30

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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.