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Finding the Fourth Proportional to 61,898.39, 85,419.54 and 33,604.07

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Solution

The fourth proportional to 61,898.39, 85,419.54 and 33,604.07 is: 46,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,898.39 : 85,419.54 = 33,604.07 : x
  2. Step 2: Convert to fraction form
    61,898.39/85,419.54 = 33,604.07/x
  3. Step 3: Cross multiply
    61,898.39x = 85,419.54 × 33,604.07
  4. Step 4: Simplify right side
    61,898.39x = 2,870,444,201.53
  5. Step 5: Solve for x
    x = 2,870,444,201.53/61,898.39
  6. Step 6: Final answer
    x = 46,373.49

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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.