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Finding the Fourth Proportional to 254,615.28, 351,222.91 and 158,955.90

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Solution

The fourth proportional to 254,615.28, 351,222.91 and 158,955.90 is: 219,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,615.28 : 351,222.91 = 158,955.90 : x
  2. Step 2: Convert to fraction form
    254,615.28/351,222.91 = 158,955.90/x
  3. Step 3: Cross multiply
    254,615.28x = 351,222.91 × 158,955.90
  4. Step 4: Simplify right side
    254,615.28x = 55,828,953,759.67
  5. Step 5: Solve for x
    x = 55,828,953,759.67/254,615.28
  6. Step 6: Final answer
    x = 219,267.88

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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.