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Finding the Fourth Proportional to 58,905.70, 88,358.55 and 40,243.30

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Solution

The fourth proportional to 58,905.70, 88,358.55 and 40,243.30 is: 60,364.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,905.70 : 88,358.55 = 40,243.30 : x
  2. Step 2: Convert to fraction form
    58,905.70/88,358.55 = 40,243.30/x
  3. Step 3: Cross multiply
    58,905.70x = 88,358.55 × 40,243.30
  4. Step 4: Simplify right side
    58,905.70x = 3,555,839,635.22
  5. Step 5: Solve for x
    x = 3,555,839,635.22/58,905.70
  6. Step 6: Final answer
    x = 60,364.95

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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.