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Finding the Fourth Proportional to 358,081.92, 537,157.94 and 130,439.39

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Solution

The fourth proportional to 358,081.92, 537,157.94 and 130,439.39 is: 195,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,081.92 : 537,157.94 = 130,439.39 : x
  2. Step 2: Convert to fraction form
    358,081.92/537,157.94 = 130,439.39/x
  3. Step 3: Cross multiply
    358,081.92x = 537,157.94 × 130,439.39
  4. Step 4: Simplify right side
    358,081.92x = 70,066,550,689.27
  5. Step 5: Solve for x
    x = 70,066,550,689.27/358,081.92
  6. Step 6: Final answer
    x = 195,671.85

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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.