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Finding the Fourth Proportional to 244,214.40, 366,386.40 and 86,426.40

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Solution

The fourth proportional to 244,214.40, 366,386.40 and 86,426.40 is: 129,662.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,214.40 : 366,386.40 = 86,426.40 : x
  2. Step 2: Convert to fraction form
    244,214.40/366,386.40 = 86,426.40/x
  3. Step 3: Cross multiply
    244,214.40x = 366,386.40 × 86,426.40
  4. Step 4: Simplify right side
    244,214.40x = 31,665,457,560.96
  5. Step 5: Solve for x
    x = 31,665,457,560.96/244,214.40
  6. Step 6: Final answer
    x = 129,662.53

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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.