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Finding the Fourth Proportional to 369,062.96, 509,308.44 and 207,919.96

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Solution

The fourth proportional to 369,062.96, 509,308.44 and 207,919.96 is: 286,930.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,062.96 : 509,308.44 = 207,919.96 : x
  2. Step 2: Convert to fraction form
    369,062.96/509,308.44 = 207,919.96/x
  3. Step 3: Cross multiply
    369,062.96x = 509,308.44 × 207,919.96
  4. Step 4: Simplify right side
    369,062.96x = 105,895,390,472.46
  5. Step 5: Solve for x
    x = 105,895,390,472.46/369,062.96
  6. Step 6: Final answer
    x = 286,930.42

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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.