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Finding the Fourth Proportional to 358,719.08, 537,891.78 and 133,894.64

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Solution

The fourth proportional to 358,719.08, 537,891.78 and 133,894.64 is: 200,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,719.08 : 537,891.78 = 133,894.64 : x
  2. Step 2: Convert to fraction form
    358,719.08/537,891.78 = 133,894.64/x
  3. Step 3: Cross multiply
    358,719.08x = 537,891.78 × 133,894.64
  4. Step 4: Simplify right side
    358,719.08x = 72,020,826,242.06
  5. Step 5: Solve for x
    x = 72,020,826,242.06/358,719.08
  6. Step 6: Final answer
    x = 200,772.22

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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.