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Finding the Fourth Proportional to 354,795.15, 532,028.70 and 155,012.70

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Solution

The fourth proportional to 354,795.15, 532,028.70 and 155,012.70 is: 232,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,795.15 : 532,028.70 = 155,012.70 : x
  2. Step 2: Convert to fraction form
    354,795.15/532,028.70 = 155,012.70/x
  3. Step 3: Cross multiply
    354,795.15x = 532,028.70 × 155,012.70
  4. Step 4: Simplify right side
    354,795.15x = 82,471,205,264.49
  5. Step 5: Solve for x
    x = 82,471,205,264.49/354,795.15
  6. Step 6: Final answer
    x = 232,447.39

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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.