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Finding the Fourth Proportional to 76,036.62, 104,904.54 and 45,810.54

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Solution

The fourth proportional to 76,036.62, 104,904.54 and 45,810.54 is: 63,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,036.62 : 104,904.54 = 45,810.54 : x
  2. Step 2: Convert to fraction form
    76,036.62/104,904.54 = 45,810.54/x
  3. Step 3: Cross multiply
    76,036.62x = 104,904.54 × 45,810.54
  4. Step 4: Simplify right side
    76,036.62x = 4,805,733,625.85
  5. Step 5: Solve for x
    x = 4,805,733,625.85/76,036.62
  6. Step 6: Final answer
    x = 63,202.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.