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Finding the Fourth Proportional to 150,556.53, 207,748.87 and 86,029.95

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Solution

The fourth proportional to 150,556.53, 207,748.87 and 86,029.95 is: 118,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,556.53 : 207,748.87 = 86,029.95 : x
  2. Step 2: Convert to fraction form
    150,556.53/207,748.87 = 86,029.95/x
  3. Step 3: Cross multiply
    150,556.53x = 207,748.87 × 86,029.95
  4. Step 4: Simplify right side
    150,556.53x = 17,872,624,683.58
  5. Step 5: Solve for x
    x = 17,872,624,683.58/150,556.53
  6. Step 6: Final answer
    x = 118,710.39

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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.