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Finding the Fourth Proportional to 147,615.14, 203,650.26 and 90,928.10

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Solution

The fourth proportional to 147,615.14, 203,650.26 and 90,928.10 is: 125,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,615.14 : 203,650.26 = 90,928.10 : x
  2. Step 2: Convert to fraction form
    147,615.14/203,650.26 = 90,928.10/x
  3. Step 3: Cross multiply
    147,615.14x = 203,650.26 × 90,928.10
  4. Step 4: Simplify right side
    147,615.14x = 18,517,531,206.31
  5. Step 5: Solve for x
    x = 18,517,531,206.31/147,615.14
  6. Step 6: Final answer
    x = 125,444.66

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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.