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Finding the Fourth Proportional to 56,466.67, 78,015.54 and 48,057.66

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Solution

The fourth proportional to 56,466.67, 78,015.54 and 48,057.66 is: 66,397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,466.67 : 78,015.54 = 48,057.66 : x
  2. Step 2: Convert to fraction form
    56,466.67/78,015.54 = 48,057.66/x
  3. Step 3: Cross multiply
    56,466.67x = 78,015.54 × 48,057.66
  4. Step 4: Simplify right side
    56,466.67x = 3,749,244,296.04
  5. Step 5: Solve for x
    x = 3,749,244,296.04/56,466.67
  6. Step 6: Final answer
    x = 66,397.47

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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.