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Finding the Fourth Proportional to 254,472.40, 381,927.30 and 112,536.10

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Solution

The fourth proportional to 254,472.40, 381,927.30 and 112,536.10 is: 168,900.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,472.40 : 381,927.30 = 112,536.10 : x
  2. Step 2: Convert to fraction form
    254,472.40/381,927.30 = 112,536.10/x
  3. Step 3: Cross multiply
    254,472.40x = 381,927.30 × 112,536.10
  4. Step 4: Simplify right side
    254,472.40x = 42,980,608,825.53
  5. Step 5: Solve for x
    x = 42,980,608,825.53/254,472.40
  6. Step 6: Final answer
    x = 168,900.87

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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.