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Finding the Fourth Proportional to 99,907.99, 149,858.51 and 25,028.78

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Solution

The fourth proportional to 99,907.99, 149,858.51 and 25,028.78 is: 37,542.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,907.99 : 149,858.51 = 25,028.78 : x
  2. Step 2: Convert to fraction form
    99,907.99/149,858.51 = 25,028.78/x
  3. Step 3: Cross multiply
    99,907.99x = 149,858.51 × 25,028.78
  4. Step 4: Simplify right side
    99,907.99x = 3,750,774,803.48
  5. Step 5: Solve for x
    x = 3,750,774,803.48/99,907.99
  6. Step 6: Final answer
    x = 37,542.29

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1.5x scale

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.