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Finding the Fourth Proportional to 340,044.55, 510,095.39 and 103,389.28

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Solution

The fourth proportional to 340,044.55, 510,095.39 and 103,389.28 is: 155,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,044.55 : 510,095.39 = 103,389.28 : x
  2. Step 2: Convert to fraction form
    340,044.55/510,095.39 = 103,389.28/x
  3. Step 3: Cross multiply
    340,044.55x = 510,095.39 × 103,389.28
  4. Step 4: Simplify right side
    340,044.55x = 52,738,395,103.42
  5. Step 5: Solve for x
    x = 52,738,395,103.42/340,044.55
  6. Step 6: Final answer
    x = 155,092.61

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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.