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Finding the Fourth Proportional to 336,710.40, 505,000.80 and 100,060.80

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Solution

The fourth proportional to 336,710.40, 505,000.80 and 100,060.80 is: 150,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,710.40 : 505,000.80 = 100,060.80 : x
  2. Step 2: Convert to fraction form
    336,710.40/505,000.80 = 100,060.80/x
  3. Step 3: Cross multiply
    336,710.40x = 505,000.80 × 100,060.80
  4. Step 4: Simplify right side
    336,710.40x = 50,530,784,048.64
  5. Step 5: Solve for x
    x = 50,530,784,048.64/336,710.40
  6. Step 6: Final answer
    x = 150,071.94

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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.