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Finding the Fourth Proportional to 174,605.74, 261,689.49 and 74,648.45

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Solution

The fourth proportional to 174,605.74, 261,689.49 and 74,648.45 is: 111,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,605.74 : 261,689.49 = 74,648.45 : x
  2. Step 2: Convert to fraction form
    174,605.74/261,689.49 = 74,648.45/x
  3. Step 3: Cross multiply
    174,605.74x = 261,689.49 × 74,648.45
  4. Step 4: Simplify right side
    174,605.74x = 19,534,715,743.95
  5. Step 5: Solve for x
    x = 19,534,715,743.95/174,605.74
  6. Step 6: Final answer
    x = 111,879.00

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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.