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Finding the Fourth Proportional to 55,603.72, 76,484.28 and 48,764.08

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Solution

The fourth proportional to 55,603.72, 76,484.28 and 48,764.08 is: 67,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,603.72 : 76,484.28 = 48,764.08 : x
  2. Step 2: Convert to fraction form
    55,603.72/76,484.28 = 48,764.08/x
  3. Step 3: Cross multiply
    55,603.72x = 76,484.28 × 48,764.08
  4. Step 4: Simplify right side
    55,603.72x = 3,729,685,548.66
  5. Step 5: Solve for x
    x = 3,729,685,548.66/55,603.72
  6. Step 6: Final answer
    x = 67,076.19

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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.