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Finding the Fourth Proportional to 73,668.64, 110,410.44 and 31,499.18

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Solution

The fourth proportional to 73,668.64, 110,410.44 and 31,499.18 is: 47,209.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,668.64 : 110,410.44 = 31,499.18 : x
  2. Step 2: Convert to fraction form
    73,668.64/110,410.44 = 31,499.18/x
  3. Step 3: Cross multiply
    73,668.64x = 110,410.44 × 31,499.18
  4. Step 4: Simplify right side
    73,668.64x = 3,477,838,244.49
  5. Step 5: Solve for x
    x = 3,477,838,244.49/73,668.64
  6. Step 6: Final answer
    x = 47,209.21

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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.