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Finding the Fourth Proportional to 58,409.48, 80,605.06 and 31,551.99

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Solution

The fourth proportional to 58,409.48, 80,605.06 and 31,551.99 is: 43,541.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,409.48 : 80,605.06 = 31,551.99 : x
  2. Step 2: Convert to fraction form
    58,409.48/80,605.06 = 31,551.99/x
  3. Step 3: Cross multiply
    58,409.48x = 80,605.06 × 31,551.99
  4. Step 4: Simplify right side
    58,409.48x = 2,543,250,047.07
  5. Step 5: Solve for x
    x = 2,543,250,047.07/58,409.48
  6. Step 6: Final answer
    x = 43,541.73

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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.