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Finding the Fourth Proportional to 199,123.76, 297,983.77 and 124,278.95

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Solution

The fourth proportional to 199,123.76, 297,983.77 and 124,278.95 is: 185,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,123.76 : 297,983.77 = 124,278.95 : x
  2. Step 2: Convert to fraction form
    199,123.76/297,983.77 = 124,278.95/x
  3. Step 3: Cross multiply
    199,123.76x = 297,983.77 × 124,278.95
  4. Step 4: Simplify right side
    199,123.76x = 37,033,110,052.64
  5. Step 5: Solve for x
    x = 37,033,110,052.64/199,123.76
  6. Step 6: Final answer
    x = 185,980.37

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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.