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Finding the Fourth Proportional to 169,489.20, 254,428.20 and 103,004.40

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Solution

The fourth proportional to 169,489.20, 254,428.20 and 103,004.40 is: 154,624.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,489.20 : 254,428.20 = 103,004.40 : x
  2. Step 2: Convert to fraction form
    169,489.20/254,428.20 = 103,004.40/x
  3. Step 3: Cross multiply
    169,489.20x = 254,428.20 × 103,004.40
  4. Step 4: Simplify right side
    169,489.20x = 26,207,224,084.08
  5. Step 5: Solve for x
    x = 26,207,224,084.08/169,489.20
  6. Step 6: Final answer
    x = 154,624.74

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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.