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Finding the Fourth Proportional to 58,657.53, 87,231.63 and 56,789.17

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Solution

The fourth proportional to 58,657.53, 87,231.63 and 56,789.17 is: 84,453.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,657.53 : 87,231.63 = 56,789.17 : x
  2. Step 2: Convert to fraction form
    58,657.53/87,231.63 = 56,789.17/x
  3. Step 3: Cross multiply
    58,657.53x = 87,231.63 × 56,789.17
  4. Step 4: Simplify right side
    58,657.53x = 4,953,811,860.33
  5. Step 5: Solve for x
    x = 4,953,811,860.33/58,657.53
  6. Step 6: Final answer
    x = 84,453.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.