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Finding the Fourth Proportional to 238,744.80, 358,013.52 and 72,493.92

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Solution

The fourth proportional to 238,744.80, 358,013.52 and 72,493.92 is: 108,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,744.80 : 358,013.52 = 72,493.92 : x
  2. Step 2: Convert to fraction form
    238,744.80/358,013.52 = 72,493.92/x
  3. Step 3: Cross multiply
    238,744.80x = 358,013.52 × 72,493.92
  4. Step 4: Simplify right side
    238,744.80x = 25,953,803,477.80
  5. Step 5: Solve for x
    x = 25,953,803,477.80/238,744.80
  6. Step 6: Final answer
    x = 108,709.40

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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.