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Finding the Fourth Proportional to 358,086.60, 537,128.94 and 133,441.92

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Solution

The fourth proportional to 358,086.60, 537,128.94 and 133,441.92 is: 200,162.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.60 : 537,128.94 = 133,441.92 : x
  2. Step 2: Convert to fraction form
    358,086.60/537,128.94 = 133,441.92/x
  3. Step 3: Cross multiply
    358,086.60x = 537,128.94 × 133,441.92
  4. Step 4: Simplify right side
    358,086.60x = 71,675,517,041.16
  5. Step 5: Solve for x
    x = 71,675,517,041.16/358,086.60
  6. Step 6: Final answer
    x = 200,162.52

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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.