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Finding the Fourth Proportional to 73,487.10, 110,230.65 and 55,991.10

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Solution

The fourth proportional to 73,487.10, 110,230.65 and 55,991.10 is: 83,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,487.10 : 110,230.65 = 55,991.10 : x
  2. Step 2: Convert to fraction form
    73,487.10/110,230.65 = 55,991.10/x
  3. Step 3: Cross multiply
    73,487.10x = 110,230.65 × 55,991.10
  4. Step 4: Simplify right side
    73,487.10x = 6,171,935,347.22
  5. Step 5: Solve for x
    x = 6,171,935,347.22/73,487.10
  6. Step 6: Final answer
    x = 83,986.65

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1.5x scale

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.