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Finding the Fourth Proportional to 59,990.64, 82,742.34 and 53,192.64

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Solution

The fourth proportional to 59,990.64, 82,742.34 and 53,192.64 is: 73,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,990.64 : 82,742.34 = 53,192.64 : x
  2. Step 2: Convert to fraction form
    59,990.64/82,742.34 = 53,192.64/x
  3. Step 3: Cross multiply
    59,990.64x = 82,742.34 × 53,192.64
  4. Step 4: Simplify right side
    59,990.64x = 4,401,283,504.38
  5. Step 5: Solve for x
    x = 4,401,283,504.38/59,990.64
  6. Step 6: Final answer
    x = 73,366.17

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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.