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Finding the Fourth Proportional to 69,866.43, 104,477.70 and 51,888.59

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Solution

The fourth proportional to 69,866.43, 104,477.70 and 51,888.59 is: 77,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,866.43 : 104,477.70 = 51,888.59 : x
  2. Step 2: Convert to fraction form
    69,866.43/104,477.70 = 51,888.59/x
  3. Step 3: Cross multiply
    69,866.43x = 104,477.70 × 51,888.59
  4. Step 4: Simplify right side
    69,866.43x = 5,421,200,017.05
  5. Step 5: Solve for x
    x = 5,421,200,017.05/69,866.43
  6. Step 6: Final answer
    x = 77,593.77

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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.