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Finding the Fourth Proportional to 229,900.40, 344,645.40 and 89,626.40

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Solution

The fourth proportional to 229,900.40, 344,645.40 and 89,626.40 is: 134,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,900.40 : 344,645.40 = 89,626.40 : x
  2. Step 2: Convert to fraction form
    229,900.40/344,645.40 = 89,626.40/x
  3. Step 3: Cross multiply
    229,900.40x = 344,645.40 × 89,626.40
  4. Step 4: Simplify right side
    229,900.40x = 30,889,326,478.56
  5. Step 5: Solve for x
    x = 30,889,326,478.56/229,900.40
  6. Step 6: Final answer
    x = 134,359.60

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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.