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Finding the Fourth Proportional to 203,424.90, 305,137.35 and 164,058.90

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Solution

The fourth proportional to 203,424.90, 305,137.35 and 164,058.90 is: 246,088.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,424.90 : 305,137.35 = 164,058.90 : x
  2. Step 2: Convert to fraction form
    203,424.90/305,137.35 = 164,058.90/x
  3. Step 3: Cross multiply
    203,424.90x = 305,137.35 × 164,058.90
  4. Step 4: Simplify right side
    203,424.90x = 50,060,497,989.92
  5. Step 5: Solve for x
    x = 50,060,497,989.92/203,424.90
  6. Step 6: Final answer
    x = 246,088.35

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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.