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Finding the Fourth Proportional to 254,503.50, 351,247.23 and 153,902.22

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Solution

The fourth proportional to 254,503.50, 351,247.23 and 153,902.22 is: 212,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,503.50 : 351,247.23 = 153,902.22 : x
  2. Step 2: Convert to fraction form
    254,503.50/351,247.23 = 153,902.22/x
  3. Step 3: Cross multiply
    254,503.50x = 351,247.23 × 153,902.22
  4. Step 4: Simplify right side
    254,503.50x = 54,057,728,465.85
  5. Step 5: Solve for x
    x = 54,057,728,465.85/254,503.50
  6. Step 6: Final answer
    x = 212,404.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.