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Finding the Fourth Proportional to 144,870.98, 217,261.47 and 69,944.54

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Solution

The fourth proportional to 144,870.98, 217,261.47 and 69,944.54 is: 104,895.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,870.98 : 217,261.47 = 69,944.54 : x
  2. Step 2: Convert to fraction form
    144,870.98/217,261.47 = 69,944.54/x
  3. Step 3: Cross multiply
    144,870.98x = 217,261.47 × 69,944.54
  4. Step 4: Simplify right side
    144,870.98x = 15,196,253,578.87
  5. Step 5: Solve for x
    x = 15,196,253,578.87/144,870.98
  6. Step 6: Final answer
    x = 104,895.08

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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.