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Finding the Fourth Proportional to 53,231.54, 79,710.95 and 51,654.87

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Solution

The fourth proportional to 53,231.54, 79,710.95 and 51,654.87 is: 77,349.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,231.54 : 79,710.95 = 51,654.87 : x
  2. Step 2: Convert to fraction form
    53,231.54/79,710.95 = 51,654.87/x
  3. Step 3: Cross multiply
    53,231.54x = 79,710.95 × 51,654.87
  4. Step 4: Simplify right side
    53,231.54x = 4,117,458,501.55
  5. Step 5: Solve for x
    x = 4,117,458,501.55/53,231.54
  6. Step 6: Final answer
    x = 77,349.99

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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.