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Finding the Fourth Proportional to 356,223.70, 535,113.15 and 251,247.70

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Solution

The fourth proportional to 356,223.70, 535,113.15 and 251,247.70 is: 377,420.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,223.70 : 535,113.15 = 251,247.70 : x
  2. Step 2: Convert to fraction form
    356,223.70/535,113.15 = 251,247.70/x
  3. Step 3: Cross multiply
    356,223.70x = 535,113.15 × 251,247.70
  4. Step 4: Simplify right side
    356,223.70x = 134,445,948,177.26
  5. Step 5: Solve for x
    x = 134,445,948,177.26/356,223.70
  6. Step 6: Final answer
    x = 377,420.00

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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.