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Finding the Fourth Proportional to 104,710.94, 144,490.15 and 59,374.43

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Solution

The fourth proportional to 104,710.94, 144,490.15 and 59,374.43 is: 81,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,710.94 : 144,490.15 = 59,374.43 : x
  2. Step 2: Convert to fraction form
    104,710.94/144,490.15 = 59,374.43/x
  3. Step 3: Cross multiply
    104,710.94x = 144,490.15 × 59,374.43
  4. Step 4: Simplify right side
    104,710.94x = 8,579,020,296.86
  5. Step 5: Solve for x
    x = 8,579,020,296.86/104,710.94
  6. Step 6: Final answer
    x = 81,930.51

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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.