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Finding the Fourth Proportional to 109,950.72, 151,748.28 and 69,668.22

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Solution

The fourth proportional to 109,950.72, 151,748.28 and 69,668.22 is: 96,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,950.72 : 151,748.28 = 69,668.22 : x
  2. Step 2: Convert to fraction form
    109,950.72/151,748.28 = 69,668.22/x
  3. Step 3: Cross multiply
    109,950.72x = 151,748.28 × 69,668.22
  4. Step 4: Simplify right side
    109,950.72x = 10,572,032,555.66
  5. Step 5: Solve for x
    x = 10,572,032,555.66/109,950.72
  6. Step 6: Final answer
    x = 96,152.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.