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Finding the Fourth Proportional to 58,558.53, 80,810.09 and 31,700.45

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Solution

The fourth proportional to 58,558.53, 80,810.09 and 31,700.45 is: 43,746.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,558.53 : 80,810.09 = 31,700.45 : x
  2. Step 2: Convert to fraction form
    58,558.53/80,810.09 = 31,700.45/x
  3. Step 3: Cross multiply
    58,558.53x = 80,810.09 × 31,700.45
  4. Step 4: Simplify right side
    58,558.53x = 2,561,715,813.49
  5. Step 5: Solve for x
    x = 2,561,715,813.49/58,558.53
  6. Step 6: Final answer
    x = 43,746.25

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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.