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Finding the Fourth Proportional to 110,957.58, 153,149.94 and 68,491.71

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Solution

The fourth proportional to 110,957.58, 153,149.94 and 68,491.71 is: 94,536.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,957.58 : 153,149.94 = 68,491.71 : x
  2. Step 2: Convert to fraction form
    110,957.58/153,149.94 = 68,491.71/x
  3. Step 3: Cross multiply
    110,957.58x = 153,149.94 × 68,491.71
  4. Step 4: Simplify right side
    110,957.58x = 10,489,501,277.00
  5. Step 5: Solve for x
    x = 10,489,501,277.00/110,957.58
  6. Step 6: Final answer
    x = 94,536.14

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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.