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Finding the Fourth Proportional to 344,250.40, 516,220.08 and 122,640.16

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Solution

The fourth proportional to 344,250.40, 516,220.08 and 122,640.16 is: 183,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,250.40 : 516,220.08 = 122,640.16 : x
  2. Step 2: Convert to fraction form
    344,250.40/516,220.08 = 122,640.16/x
  3. Step 3: Cross multiply
    344,250.40x = 516,220.08 × 122,640.16
  4. Step 4: Simplify right side
    344,250.40x = 63,309,313,206.41
  5. Step 5: Solve for x
    x = 63,309,313,206.41/344,250.40
  6. Step 6: Final answer
    x = 183,904.84

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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.