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Finding the Fourth Proportional to 480,191.90, 720,287.87 and 164,651.54

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Solution

The fourth proportional to 480,191.90, 720,287.87 and 164,651.54 is: 246,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,191.90 : 720,287.87 = 164,651.54 : x
  2. Step 2: Convert to fraction form
    480,191.90/720,287.87 = 164,651.54/x
  3. Step 3: Cross multiply
    480,191.90x = 720,287.87 × 164,651.54
  4. Step 4: Simplify right side
    480,191.90x = 118,596,502,614.12
  5. Step 5: Solve for x
    x = 118,596,502,614.12/480,191.90
  6. Step 6: Final answer
    x = 246,977.31

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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.