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Finding the Fourth Proportional to 59,989.64, 82,740.96 and 53,191.64

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Solution

The fourth proportional to 59,989.64, 82,740.96 and 53,191.64 is: 73,364.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,989.64 : 82,740.96 = 53,191.64 : x
  2. Step 2: Convert to fraction form
    59,989.64/82,740.96 = 53,191.64/x
  3. Step 3: Cross multiply
    59,989.64x = 82,740.96 × 53,191.64
  4. Step 4: Simplify right side
    59,989.64x = 4,401,127,357.57
  5. Step 5: Solve for x
    x = 4,401,127,357.57/59,989.64
  6. Step 6: Final answer
    x = 73,364.79

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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.