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Finding the Fourth Proportional to 150,491.81, 207,699.86 and 93,149.53

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Solution

The fourth proportional to 150,491.81, 207,699.86 and 93,149.53 is: 128,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,491.81 : 207,699.86 = 93,149.53 : x
  2. Step 2: Convert to fraction form
    150,491.81/207,699.86 = 93,149.53/x
  3. Step 3: Cross multiply
    150,491.81x = 207,699.86 × 93,149.53
  4. Step 4: Simplify right side
    150,491.81x = 19,347,142,835.82
  5. Step 5: Solve for x
    x = 19,347,142,835.82/150,491.81
  6. Step 6: Final answer
    x = 128,559.44

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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.