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Finding the Fourth Proportional to 143,772.68, 215,699.01 and 62,726.79

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Solution

The fourth proportional to 143,772.68, 215,699.01 and 62,726.79 is: 94,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,772.68 : 215,699.01 = 62,726.79 : x
  2. Step 2: Convert to fraction form
    143,772.68/215,699.01 = 62,726.79/x
  3. Step 3: Cross multiply
    143,772.68x = 215,699.01 × 62,726.79
  4. Step 4: Simplify right side
    143,772.68x = 13,530,106,503.48
  5. Step 5: Solve for x
    x = 13,530,106,503.48/143,772.68
  6. Step 6: Final answer
    x = 94,107.64

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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.