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Finding the Fourth Proportional to 238,888.46, 358,385.97 and 72,689.42

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Solution

The fourth proportional to 238,888.46, 358,385.97 and 72,689.42 is: 109,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,888.46 : 358,385.97 = 72,689.42 : x
  2. Step 2: Convert to fraction form
    238,888.46/358,385.97 = 72,689.42/x
  3. Step 3: Cross multiply
    238,888.46x = 358,385.97 × 72,689.42
  4. Step 4: Simplify right side
    238,888.46x = 26,050,868,295.44
  5. Step 5: Solve for x
    x = 26,050,868,295.44/238,888.46
  6. Step 6: Final answer
    x = 109,050.34

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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.