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Finding the Fourth Proportional to 61,798.14, 85,254.18 and 41,647.68

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Solution

The fourth proportional to 61,798.14, 85,254.18 and 41,647.68 is: 57,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,798.14 : 85,254.18 = 41,647.68 : x
  2. Step 2: Convert to fraction form
    61,798.14/85,254.18 = 41,647.68/x
  3. Step 3: Cross multiply
    61,798.14x = 85,254.18 × 41,647.68
  4. Step 4: Simplify right side
    61,798.14x = 3,550,638,807.30
  5. Step 5: Solve for x
    x = 3,550,638,807.30/61,798.14
  6. Step 6: Final answer
    x = 57,455.43

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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.