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Finding the Fourth Proportional to 144,672.28, 217,148.48 and 69,844.95

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Solution

The fourth proportional to 144,672.28, 217,148.48 and 69,844.95 is: 104,835.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,672.28 : 217,148.48 = 69,844.95 : x
  2. Step 2: Convert to fraction form
    144,672.28/217,148.48 = 69,844.95/x
  3. Step 3: Cross multiply
    144,672.28x = 217,148.48 × 69,844.95
  4. Step 4: Simplify right side
    144,672.28x = 15,166,724,728.18
  5. Step 5: Solve for x
    x = 15,166,724,728.18/144,672.28
  6. Step 6: Final answer
    x = 104,835.04

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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.