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Finding the Fourth Proportional to 329,561.28, 454,817.88 and 186,322.68

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Solution

The fourth proportional to 329,561.28, 454,817.88 and 186,322.68 is: 257,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,561.28 : 454,817.88 = 186,322.68 : x
  2. Step 2: Convert to fraction form
    329,561.28/454,817.88 = 186,322.68/x
  3. Step 3: Cross multiply
    329,561.28x = 454,817.88 × 186,322.68
  4. Step 4: Simplify right side
    329,561.28x = 84,742,886,313.52
  5. Step 5: Solve for x
    x = 84,742,886,313.52/329,561.28
  6. Step 6: Final answer
    x = 257,138.48

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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.