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Finding the Fourth Proportional to 225,022.67, 310,530.50 and 126,898.11

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Solution

The fourth proportional to 225,022.67, 310,530.50 and 126,898.11 is: 175,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,022.67 : 310,530.50 = 126,898.11 : x
  2. Step 2: Convert to fraction form
    225,022.67/310,530.50 = 126,898.11/x
  3. Step 3: Cross multiply
    225,022.67x = 310,530.50 × 126,898.11
  4. Step 4: Simplify right side
    225,022.67x = 39,405,733,547.36
  5. Step 5: Solve for x
    x = 39,405,733,547.36/225,022.67
  6. Step 6: Final answer
    x = 175,118.95

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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.