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Finding the Fourth Proportional to 69,784.56, 96,401.34 and 54,071.64

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Solution

The fourth proportional to 69,784.56, 96,401.34 and 54,071.64 is: 74,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,784.56 : 96,401.34 = 54,071.64 : x
  2. Step 2: Convert to fraction form
    69,784.56/96,401.34 = 54,071.64/x
  3. Step 3: Cross multiply
    69,784.56x = 96,401.34 × 54,071.64
  4. Step 4: Simplify right side
    69,784.56x = 5,212,578,552.00
  5. Step 5: Solve for x
    x = 5,212,578,552.00/69,784.56
  6. Step 6: Final answer
    x = 74,695.30

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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.