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Finding the Fourth Proportional to 338,888.64, 508,334.88 and 89,568

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Solution

The fourth proportional to 338,888.64, 508,334.88 and 89,568 is: 134,352.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,888.64 : 508,334.88 = 89,568 : x
  2. Step 2: Convert to fraction form
    338,888.64/508,334.88 = 89,568/x
  3. Step 3: Cross multiply
    338,888.64x = 508,334.88 × 89,568
  4. Step 4: Simplify right side
    338,888.64x = 45,530,538,531.84
  5. Step 5: Solve for x
    x = 45,530,538,531.84/338,888.64
  6. Step 6: Final answer
    x = 134,352.51

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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.