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Finding the Fourth Proportional to 61,431.83, 84,802.09 and 41,300.39

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Solution

The fourth proportional to 61,431.83, 84,802.09 and 41,300.39 is: 57,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431.83 : 84,802.09 = 41,300.39 : x
  2. Step 2: Convert to fraction form
    61,431.83/84,802.09 = 41,300.39/x
  3. Step 3: Cross multiply
    61,431.83x = 84,802.09 × 41,300.39
  4. Step 4: Simplify right side
    61,431.83x = 3,502,359,389.82
  5. Step 5: Solve for x
    x = 3,502,359,389.82/61,431.83
  6. Step 6: Final answer
    x = 57,012.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.