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Finding the Fourth Proportional to 202,216.98, 279,058.60 and 111,578.58

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Solution

The fourth proportional to 202,216.98, 279,058.60 and 111,578.58 is: 153,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,216.98 : 279,058.60 = 111,578.58 : x
  2. Step 2: Convert to fraction form
    202,216.98/279,058.60 = 111,578.58/x
  3. Step 3: Cross multiply
    202,216.98x = 279,058.60 × 111,578.58
  4. Step 4: Simplify right side
    202,216.98x = 31,136,962,324.79
  5. Step 5: Solve for x
    x = 31,136,962,324.79/202,216.98
  6. Step 6: Final answer
    x = 153,977.98

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1.5x scale

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.