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Finding the Fourth Proportional to 264,061.52, 396,085.68 and 77,074.64

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Solution

The fourth proportional to 264,061.52, 396,085.68 and 77,074.64 is: 115,610.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,061.52 : 396,085.68 = 77,074.64 : x
  2. Step 2: Convert to fraction form
    264,061.52/396,085.68 = 77,074.64/x
  3. Step 3: Cross multiply
    264,061.52x = 396,085.68 × 77,074.64
  4. Step 4: Simplify right side
    264,061.52x = 30,528,161,195.16
  5. Step 5: Solve for x
    x = 30,528,161,195.16/264,061.52
  6. Step 6: Final answer
    x = 115,610.03

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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.