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Finding the Fourth Proportional to 74,465.99, 102,786.06 and 45,794.42

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Solution

The fourth proportional to 74,465.99, 102,786.06 and 45,794.42 is: 63,210.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,465.99 : 102,786.06 = 45,794.42 : x
  2. Step 2: Convert to fraction form
    74,465.99/102,786.06 = 45,794.42/x
  3. Step 3: Cross multiply
    74,465.99x = 102,786.06 × 45,794.42
  4. Step 4: Simplify right side
    74,465.99x = 4,707,028,001.79
  5. Step 5: Solve for x
    x = 4,707,028,001.79/74,465.99
  6. Step 6: Final answer
    x = 63,210.44

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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.