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Finding the Fourth Proportional to 61,261.32, 84,621.72 and 45,427.44

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Solution

The fourth proportional to 61,261.32, 84,621.72 and 45,427.44 is: 62,750.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,261.32 : 84,621.72 = 45,427.44 : x
  2. Step 2: Convert to fraction form
    61,261.32/84,621.72 = 45,427.44/x
  3. Step 3: Cross multiply
    61,261.32x = 84,621.72 × 45,427.44
  4. Step 4: Simplify right side
    61,261.32x = 3,844,148,108.00
  5. Step 5: Solve for x
    x = 3,844,148,108.00/61,261.32
  6. Step 6: Final answer
    x = 62,750.00

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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.