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Finding the Fourth Proportional to 225,508.36, 310,952.14 and 143,707.03

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Solution

The fourth proportional to 225,508.36, 310,952.14 and 143,707.03 is: 198,156.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,508.36 : 310,952.14 = 143,707.03 : x
  2. Step 2: Convert to fraction form
    225,508.36/310,952.14 = 143,707.03/x
  3. Step 3: Cross multiply
    225,508.36x = 310,952.14 × 143,707.03
  4. Step 4: Simplify right side
    225,508.36x = 44,686,007,913.80
  5. Step 5: Solve for x
    x = 44,686,007,913.80/225,508.36
  6. Step 6: Final answer
    x = 198,156.77

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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.