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Finding the Fourth Proportional to 174,647.71, 261,752.40 and 74,690.37

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Solution

The fourth proportional to 174,647.71, 261,752.40 and 74,690.37 is: 111,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,647.71 : 261,752.40 = 74,690.37 : x
  2. Step 2: Convert to fraction form
    174,647.71/261,752.40 = 74,690.37/x
  3. Step 3: Cross multiply
    174,647.71x = 261,752.40 × 74,690.37
  4. Step 4: Simplify right side
    174,647.71x = 19,550,382,295.63
  5. Step 5: Solve for x
    x = 19,550,382,295.63/174,647.71
  6. Step 6: Final answer
    x = 111,941.82

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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.