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Finding the Fourth Proportional to 64,394.48, 96,458.76 and 47,773.28

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Solution

The fourth proportional to 64,394.48, 96,458.76 and 47,773.28 is: 71,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,394.48 : 96,458.76 = 47,773.28 : x
  2. Step 2: Convert to fraction form
    64,394.48/96,458.76 = 47,773.28/x
  3. Step 3: Cross multiply
    64,394.48x = 96,458.76 × 47,773.28
  4. Step 4: Simplify right side
    64,394.48x = 4,608,151,349.93
  5. Step 5: Solve for x
    x = 4,608,151,349.93/64,394.48
  6. Step 6: Final answer
    x = 71,561.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.