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Finding the Fourth Proportional to 402,360.05, 603,583.80 and 149,610.89

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Solution

The fourth proportional to 402,360.05, 603,583.80 and 149,610.89 is: 224,432.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,360.05 : 603,583.80 = 149,610.89 : x
  2. Step 2: Convert to fraction form
    402,360.05/603,583.80 = 149,610.89/x
  3. Step 3: Cross multiply
    402,360.05x = 603,583.80 × 149,610.89
  4. Step 4: Simplify right side
    402,360.05x = 90,302,709,507.58
  5. Step 5: Solve for x
    x = 90,302,709,507.58/402,360.05
  6. Step 6: Final answer
    x = 224,432.59

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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.