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Finding the Fourth Proportional to 347,577.66, 479,643.86 and 194,601.54

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Solution

The fourth proportional to 347,577.66, 479,643.86 and 194,601.54 is: 268,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,577.66 : 479,643.86 = 194,601.54 : x
  2. Step 2: Convert to fraction form
    347,577.66/479,643.86 = 194,601.54/x
  3. Step 3: Cross multiply
    347,577.66x = 479,643.86 × 194,601.54
  4. Step 4: Simplify right side
    347,577.66x = 93,339,433,807.54
  5. Step 5: Solve for x
    x = 93,339,433,807.54/347,577.66
  6. Step 6: Final answer
    x = 268,542.67

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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.