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Finding the Fourth Proportional to 358,715.48, 537,886.36 and 133,891

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Solution

The fourth proportional to 358,715.48, 537,886.36 and 133,891 is: 200,766.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,715.48 : 537,886.36 = 133,891 : x
  2. Step 2: Convert to fraction form
    358,715.48/537,886.36 = 133,891/x
  3. Step 3: Cross multiply
    358,715.48x = 537,886.36 × 133,891
  4. Step 4: Simplify right side
    358,715.48x = 72,018,142,626.76
  5. Step 5: Solve for x
    x = 72,018,142,626.76/358,715.48
  6. Step 6: Final answer
    x = 200,766.75

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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.