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Finding the Fourth Proportional to 94,918.91, 130,990.91 and 51,900.95

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Solution

The fourth proportional to 94,918.91, 130,990.91 and 51,900.95 is: 71,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,918.91 : 130,990.91 = 51,900.95 : x
  2. Step 2: Convert to fraction form
    94,918.91/130,990.91 = 51,900.95/x
  3. Step 3: Cross multiply
    94,918.91x = 130,990.91 × 51,900.95
  4. Step 4: Simplify right side
    94,918.91x = 6,798,552,738.34
  5. Step 5: Solve for x
    x = 6,798,552,738.34/94,918.91
  6. Step 6: Final answer
    x = 71,624.85

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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.