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Finding the Fourth Proportional to 254,017.98, 350,530.20 and 139,274.46

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Solution

The fourth proportional to 254,017.98, 350,530.20 and 139,274.46 is: 192,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,017.98 : 350,530.20 = 139,274.46 : x
  2. Step 2: Convert to fraction form
    254,017.98/350,530.20 = 139,274.46/x
  3. Step 3: Cross multiply
    254,017.98x = 350,530.20 × 139,274.46
  4. Step 4: Simplify right side
    254,017.98x = 48,819,904,318.69
  5. Step 5: Solve for x
    x = 48,819,904,318.69/254,017.98
  6. Step 6: Final answer
    x = 192,190.74

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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.