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Finding the Fourth Proportional to 313,136.02, 469,720.42 and 238,373.42

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Solution

The fourth proportional to 313,136.02, 469,720.42 and 238,373.42 is: 357,572.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,136.02 : 469,720.42 = 238,373.42 : x
  2. Step 2: Convert to fraction form
    313,136.02/469,720.42 = 238,373.42/x
  3. Step 3: Cross multiply
    313,136.02x = 469,720.42 × 238,373.42
  4. Step 4: Simplify right side
    313,136.02x = 111,968,862,959.24
  5. Step 5: Solve for x
    x = 111,968,862,959.24/313,136.02
  6. Step 6: Final answer
    x = 357,572.61

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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.