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Finding the Fourth Proportional to 92,943.50, 139,336.86 and 40,313.34

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Solution

The fourth proportional to 92,943.50, 139,336.86 and 40,313.34 is: 60,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,943.50 : 139,336.86 = 40,313.34 : x
  2. Step 2: Convert to fraction form
    92,943.50/139,336.86 = 40,313.34/x
  3. Step 3: Cross multiply
    92,943.50x = 139,336.86 × 40,313.34
  4. Step 4: Simplify right side
    92,943.50x = 5,617,134,211.71
  5. Step 5: Solve for x
    x = 5,617,134,211.71/92,943.50
  6. Step 6: Final answer
    x = 60,436.01

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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.