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Finding the Fourth Proportional to 73,047.02, 109,619.73 and 28,668.53

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Solution

The fourth proportional to 73,047.02, 109,619.73 and 28,668.53 is: 43,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,047.02 : 109,619.73 = 28,668.53 : x
  2. Step 2: Convert to fraction form
    73,047.02/109,619.73 = 28,668.53/x
  3. Step 3: Cross multiply
    73,047.02x = 109,619.73 × 28,668.53
  4. Step 4: Simplify right side
    73,047.02x = 3,142,635,970.00
  5. Step 5: Solve for x
    x = 3,142,635,970.00/73,047.02
  6. Step 6: Final answer
    x = 43,022.10

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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.