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Finding the Fourth Proportional to 335,313.60, 502,912.80 and 124,843.20

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Solution

The fourth proportional to 335,313.60, 502,912.80 and 124,843.20 is: 187,243.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,313.60 : 502,912.80 = 124,843.20 : x
  2. Step 2: Convert to fraction form
    335,313.60/502,912.80 = 124,843.20/x
  3. Step 3: Cross multiply
    335,313.60x = 502,912.80 × 124,843.20
  4. Step 4: Simplify right side
    335,313.60x = 62,785,243,272.96
  5. Step 5: Solve for x
    x = 62,785,243,272.96/335,313.60
  6. Step 6: Final answer
    x = 187,243.35

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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.