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Finding the Fourth Proportional to 302,539.20, 453,808.80 and 169,828.80

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Solution

The fourth proportional to 302,539.20, 453,808.80 and 169,828.80 is: 254,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,539.20 : 453,808.80 = 169,828.80 : x
  2. Step 2: Convert to fraction form
    302,539.20/453,808.80 = 169,828.80/x
  3. Step 3: Cross multiply
    302,539.20x = 453,808.80 × 169,828.80
  4. Step 4: Simplify right side
    302,539.20x = 77,069,803,933.44
  5. Step 5: Solve for x
    x = 77,069,803,933.44/302,539.20
  6. Step 6: Final answer
    x = 254,743.20

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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.