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Finding the Fourth Proportional to 358,604.78, 537,821.06 and 105,816.97

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Solution

The fourth proportional to 358,604.78, 537,821.06 and 105,816.97 is: 158,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,604.78 : 537,821.06 = 105,816.97 : x
  2. Step 2: Convert to fraction form
    358,604.78/537,821.06 = 105,816.97/x
  3. Step 3: Cross multiply
    358,604.78x = 537,821.06 × 105,816.97
  4. Step 4: Simplify right side
    358,604.78x = 56,910,594,971.39
  5. Step 5: Solve for x
    x = 56,910,594,971.39/358,604.78
  6. Step 6: Final answer
    x = 158,700.05

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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.