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Finding the Fourth Proportional to 356,917.89, 535,585.82 and 143,652.59

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Solution

The fourth proportional to 356,917.89, 535,585.82 and 143,652.59 is: 215,562.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,917.89 : 535,585.82 = 143,652.59 : x
  2. Step 2: Convert to fraction form
    356,917.89/535,585.82 = 143,652.59/x
  3. Step 3: Cross multiply
    356,917.89x = 535,585.82 × 143,652.59
  4. Step 4: Simplify right side
    356,917.89x = 76,938,289,630.57
  5. Step 5: Solve for x
    x = 76,938,289,630.57/356,917.89
  6. Step 6: Final answer
    x = 215,562.99

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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.