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Finding the Fourth Proportional to 174,647.16, 261,751.53 and 74,689.77

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Solution

The fourth proportional to 174,647.16, 261,751.53 and 74,689.77 is: 111,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,647.16 : 261,751.53 = 74,689.77 : x
  2. Step 2: Convert to fraction form
    174,647.16/261,751.53 = 74,689.77/x
  3. Step 3: Cross multiply
    174,647.16x = 261,751.53 × 74,689.77
  4. Step 4: Simplify right side
    174,647.16x = 19,550,161,572.85
  5. Step 5: Solve for x
    x = 19,550,161,572.85/174,647.16
  6. Step 6: Final answer
    x = 111,940.91

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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.