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Finding the Fourth Proportional to 104,668.74, 157,003.18 and 45,472.12

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Solution

The fourth proportional to 104,668.74, 157,003.18 and 45,472.12 is: 68,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,668.74 : 157,003.18 = 45,472.12 : x
  2. Step 2: Convert to fraction form
    104,668.74/157,003.18 = 45,472.12/x
  3. Step 3: Cross multiply
    104,668.74x = 157,003.18 × 45,472.12
  4. Step 4: Simplify right side
    104,668.74x = 7,139,266,935.15
  5. Step 5: Solve for x
    x = 7,139,266,935.15/104,668.74
  6. Step 6: Final answer
    x = 68,208.21

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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.