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Finding the Fourth Proportional to 104,490.51, 144,188.91 and 61,471.71

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Solution

The fourth proportional to 104,490.51, 144,188.91 and 61,471.71 is: 84,826.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,490.51 : 144,188.91 = 61,471.71 : x
  2. Step 2: Convert to fraction form
    104,490.51/144,188.91 = 61,471.71/x
  3. Step 3: Cross multiply
    104,490.51x = 144,188.91 × 61,471.71
  4. Step 4: Simplify right side
    104,490.51x = 8,863,538,860.74
  5. Step 5: Solve for x
    x = 8,863,538,860.74/104,490.51
  6. Step 6: Final answer
    x = 84,826.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.