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Finding the Fourth Proportional to 347,782.80, 521,382.60 and 181,570.80

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Solution

The fourth proportional to 347,782.80, 521,382.60 and 181,570.80 is: 272,203.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,782.80 : 521,382.60 = 181,570.80 : x
  2. Step 2: Convert to fraction form
    347,782.80/521,382.60 = 181,570.80/x
  3. Step 3: Cross multiply
    347,782.80x = 521,382.60 × 181,570.80
  4. Step 4: Simplify right side
    347,782.80x = 94,667,855,788.08
  5. Step 5: Solve for x
    x = 94,667,855,788.08/347,782.80
  6. Step 6: Final answer
    x = 272,203.96

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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.