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Finding the Fourth Proportional to 142,668.99, 214,005.33 and 67,796.46

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Solution

The fourth proportional to 142,668.99, 214,005.33 and 67,796.46 is: 101,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,668.99 : 214,005.33 = 67,796.46 : x
  2. Step 2: Convert to fraction form
    142,668.99/214,005.33 = 67,796.46/x
  3. Step 3: Cross multiply
    142,668.99x = 214,005.33 × 67,796.46
  4. Step 4: Simplify right side
    142,668.99x = 14,508,803,795.13
  5. Step 5: Solve for x
    x = 14,508,803,795.13/142,668.99
  6. Step 6: Final answer
    x = 101,695.57

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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.