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Finding the Fourth Proportional to 129,605.58, 194,127.06 and 62,905.53

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Solution

The fourth proportional to 129,605.58, 194,127.06 and 62,905.53 is: 94,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,605.58 : 194,127.06 = 62,905.53 : x
  2. Step 2: Convert to fraction form
    129,605.58/194,127.06 = 62,905.53/x
  3. Step 3: Cross multiply
    129,605.58x = 194,127.06 × 62,905.53
  4. Step 4: Simplify right side
    129,605.58x = 12,211,665,596.64
  5. Step 5: Solve for x
    x = 12,211,665,596.64/129,605.58
  6. Step 6: Final answer
    x = 94,221.76

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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.