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Finding the Fourth Proportional to 225,435.52, 338,205.12 and 67,666.96

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Solution

The fourth proportional to 225,435.52, 338,205.12 and 67,666.96 is: 101,516.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,435.52 : 338,205.12 = 67,666.96 : x
  2. Step 2: Convert to fraction form
    225,435.52/338,205.12 = 67,666.96/x
  3. Step 3: Cross multiply
    225,435.52x = 338,205.12 × 67,666.96
  4. Step 4: Simplify right side
    225,435.52x = 22,885,312,326.84
  5. Step 5: Solve for x
    x = 22,885,312,326.84/225,435.52
  6. Step 6: Final answer
    x = 101,516.00

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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.