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Finding the Fourth Proportional to 253,872.48, 350,347.88 and 139,150.24

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Solution

The fourth proportional to 253,872.48, 350,347.88 and 139,150.24 is: 192,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,872.48 : 350,347.88 = 139,150.24 : x
  2. Step 2: Convert to fraction form
    253,872.48/350,347.88 = 139,150.24/x
  3. Step 3: Cross multiply
    253,872.48x = 350,347.88 × 139,150.24
  4. Step 4: Simplify right side
    253,872.48x = 48,750,991,585.49
  5. Step 5: Solve for x
    x = 48,750,991,585.49/253,872.48
  6. Step 6: Final answer
    x = 192,029.45

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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.