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Finding the Fourth Proportional to 334,549.80, 501,658.56 and 121,309.20

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Solution

The fourth proportional to 334,549.80, 501,658.56 and 121,309.20 is: 181,903.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,549.80 : 501,658.56 = 121,309.20 : x
  2. Step 2: Convert to fraction form
    334,549.80/501,658.56 = 121,309.20/x
  3. Step 3: Cross multiply
    334,549.80x = 501,658.56 × 121,309.20
  4. Step 4: Simplify right side
    334,549.80x = 60,855,798,586.75
  5. Step 5: Solve for x
    x = 60,855,798,586.75/334,549.80
  6. Step 6: Final answer
    x = 181,903.56

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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.