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Finding the Fourth Proportional to 358,601.78, 537,816.56 and 105,813.97

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Solution

The fourth proportional to 358,601.78, 537,816.56 and 105,813.97 is: 158,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,601.78 : 537,816.56 = 105,813.97 : x
  2. Step 2: Convert to fraction form
    358,601.78/537,816.56 = 105,813.97/x
  3. Step 3: Cross multiply
    358,601.78x = 537,816.56 × 105,813.97
  4. Step 4: Simplify right side
    358,601.78x = 56,908,505,579.54
  5. Step 5: Solve for x
    x = 56,908,505,579.54/358,601.78
  6. Step 6: Final answer
    x = 158,695.55

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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.