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Finding the Fourth Proportional to 355,385.70, 532,750.50 and 177,738.12

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Solution

The fourth proportional to 355,385.70, 532,750.50 and 177,738.12 is: 266,443.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,385.70 : 532,750.50 = 177,738.12 : x
  2. Step 2: Convert to fraction form
    355,385.70/532,750.50 = 177,738.12/x
  3. Step 3: Cross multiply
    355,385.70x = 532,750.50 × 177,738.12
  4. Step 4: Simplify right side
    355,385.70x = 94,690,072,299.06
  5. Step 5: Solve for x
    x = 94,690,072,299.06/355,385.70
  6. Step 6: Final answer
    x = 266,443.11

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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.