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Finding the Fourth Proportional to 268,758.45, 370,895.35 and 154,058.80

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Solution

The fourth proportional to 268,758.45, 370,895.35 and 154,058.80 is: 212,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,758.45 : 370,895.35 = 154,058.80 : x
  2. Step 2: Convert to fraction form
    268,758.45/370,895.35 = 154,058.80/x
  3. Step 3: Cross multiply
    268,758.45x = 370,895.35 × 154,058.80
  4. Step 4: Simplify right side
    268,758.45x = 57,139,691,234.19
  5. Step 5: Solve for x
    x = 57,139,691,234.19/268,758.45
  6. Step 6: Final answer
    x = 212,606.12

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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.