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Finding the Fourth Proportional to 73,710.36, 110,478.06 and 42,481.08

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Solution

The fourth proportional to 73,710.36, 110,478.06 and 42,481.08 is: 63,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,710.36 : 110,478.06 = 42,481.08 : x
  2. Step 2: Convert to fraction form
    73,710.36/110,478.06 = 42,481.08/x
  3. Step 3: Cross multiply
    73,710.36x = 110,478.06 × 42,481.08
  4. Step 4: Simplify right side
    73,710.36x = 4,693,227,305.10
  5. Step 5: Solve for x
    x = 4,693,227,305.10/73,710.36
  6. Step 6: Final answer
    x = 63,671.20

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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.