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Finding the Fourth Proportional to 411,131.01, 616,762.98 and 126,755.00

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Solution

The fourth proportional to 411,131.01, 616,762.98 and 126,755.00 is: 190,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,131.01 : 616,762.98 = 126,755.00 : x
  2. Step 2: Convert to fraction form
    411,131.01/616,762.98 = 126,755.00/x
  3. Step 3: Cross multiply
    411,131.01x = 616,762.98 × 126,755.00
  4. Step 4: Simplify right side
    411,131.01x = 78,177,788,446.09
  5. Step 5: Solve for x
    x = 78,177,788,446.09/411,131.01
  6. Step 6: Final answer
    x = 190,152.98

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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.