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Finding the Fourth Proportional to 480,369.13, 720,309.12 and 160,405.96

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Solution

The fourth proportional to 480,369.13, 720,309.12 and 160,405.96 is: 240,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,369.13 : 720,309.12 = 160,405.96 : x
  2. Step 2: Convert to fraction form
    480,369.13/720,309.12 = 160,405.96/x
  3. Step 3: Cross multiply
    480,369.13x = 720,309.12 × 160,405.96
  4. Step 4: Simplify right side
    480,369.13x = 115,541,875,890.36
  5. Step 5: Solve for x
    x = 115,541,875,890.36/480,369.13
  6. Step 6: Final answer
    x = 240,527.27

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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.