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Finding the Fourth Proportional to 61,666.78, 85,100.40 and 33,372.46

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Solution

The fourth proportional to 61,666.78, 85,100.40 and 33,372.46 is: 46,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,666.78 : 85,100.40 = 33,372.46 : x
  2. Step 2: Convert to fraction form
    61,666.78/85,100.40 = 33,372.46/x
  3. Step 3: Cross multiply
    61,666.78x = 85,100.40 × 33,372.46
  4. Step 4: Simplify right side
    61,666.78x = 2,840,009,694.98
  5. Step 5: Solve for x
    x = 2,840,009,694.98/61,666.78
  6. Step 6: Final answer
    x = 46,054.13

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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.