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Finding the Fourth Proportional to 404,937.50, 607,343.81 and 135,070.34

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Solution

The fourth proportional to 404,937.50, 607,343.81 and 135,070.34 is: 202,584.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,937.50 : 607,343.81 = 135,070.34 : x
  2. Step 2: Convert to fraction form
    404,937.50/607,343.81 = 135,070.34/x
  3. Step 3: Cross multiply
    404,937.50x = 607,343.81 × 135,070.34
  4. Step 4: Simplify right side
    404,937.50x = 82,034,131,201.52
  5. Step 5: Solve for x
    x = 82,034,131,201.52/404,937.50
  6. Step 6: Final answer
    x = 202,584.68

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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.