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Finding the Fourth Proportional to 58,768.81, 81,135.57 and 35,807.30

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Solution

The fourth proportional to 58,768.81, 81,135.57 and 35,807.30 is: 49,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,768.81 : 81,135.57 = 35,807.30 : x
  2. Step 2: Convert to fraction form
    58,768.81/81,135.57 = 35,807.30/x
  3. Step 3: Cross multiply
    58,768.81x = 81,135.57 × 35,807.30
  4. Step 4: Simplify right side
    58,768.81x = 2,905,245,379.50
  5. Step 5: Solve for x
    x = 2,905,245,379.50/58,768.81
  6. Step 6: Final answer
    x = 49,435.16

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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.