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Finding the Fourth Proportional to 197,674.71, 272,791.22 and 107,030.74

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Solution

The fourth proportional to 197,674.71, 272,791.22 and 107,030.74 is: 147,702.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,674.71 : 272,791.22 = 107,030.74 : x
  2. Step 2: Convert to fraction form
    197,674.71/272,791.22 = 107,030.74/x
  3. Step 3: Cross multiply
    197,674.71x = 272,791.22 × 107,030.74
  4. Step 4: Simplify right side
    197,674.71x = 29,197,044,242.99
  5. Step 5: Solve for x
    x = 29,197,044,242.99/197,674.71
  6. Step 6: Final answer
    x = 147,702.48

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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.