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Finding the Fourth Proportional to 375,123.28, 517,670.06 and 203,041.19

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Solution

The fourth proportional to 375,123.28, 517,670.06 and 203,041.19 is: 280,196.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,123.28 : 517,670.06 = 203,041.19 : x
  2. Step 2: Convert to fraction form
    375,123.28/517,670.06 = 203,041.19/x
  3. Step 3: Cross multiply
    375,123.28x = 517,670.06 × 203,041.19
  4. Step 4: Simplify right side
    375,123.28x = 105,108,345,288.74
  5. Step 5: Solve for x
    x = 105,108,345,288.74/375,123.28
  6. Step 6: Final answer
    x = 280,196.81

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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.