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Finding the Fourth Proportional to 122,751.81, 183,731.72 and 63,505.89

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Solution

The fourth proportional to 122,751.81, 183,731.72 and 63,505.89 is: 95,053.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,751.81 : 183,731.72 = 63,505.89 : x
  2. Step 2: Convert to fraction form
    122,751.81/183,731.72 = 63,505.89/x
  3. Step 3: Cross multiply
    122,751.81x = 183,731.72 × 63,505.89
  4. Step 4: Simplify right side
    122,751.81x = 11,668,046,082.30
  5. Step 5: Solve for x
    x = 11,668,046,082.30/122,751.81
  6. Step 6: Final answer
    x = 95,053.96

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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.