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Finding the Fourth Proportional to 70,983.71, 97,957.32 and 40,770.99

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Solution

The fourth proportional to 70,983.71, 97,957.32 and 40,770.99 is: 56,263.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983.71 : 97,957.32 = 40,770.99 : x
  2. Step 2: Convert to fraction form
    70,983.71/97,957.32 = 40,770.99/x
  3. Step 3: Cross multiply
    70,983.71x = 97,957.32 × 40,770.99
  4. Step 4: Simplify right side
    70,983.71x = 3,993,816,914.15
  5. Step 5: Solve for x
    x = 3,993,816,914.15/70,983.71
  6. Step 6: Final answer
    x = 56,263.86

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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.