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Finding the Fourth Proportional to 375,020.56, 517,529.73 and 202,938.50

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Solution

The fourth proportional to 375,020.56, 517,529.73 and 202,938.50 is: 280,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,020.56 : 517,529.73 = 202,938.50 : x
  2. Step 2: Convert to fraction form
    375,020.56/517,529.73 = 202,938.50/x
  3. Step 3: Cross multiply
    375,020.56x = 517,529.73 × 202,938.50
  4. Step 4: Simplify right side
    375,020.56x = 105,026,707,582.53
  5. Step 5: Solve for x
    x = 105,026,707,582.53/375,020.56
  6. Step 6: Final answer
    x = 280,055.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.