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Finding the Fourth Proportional to 112,963.59, 169,341.71 and 39,039.75

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Solution

The fourth proportional to 112,963.59, 169,341.71 and 39,039.75 is: 58,523.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,963.59 : 169,341.71 = 39,039.75 : x
  2. Step 2: Convert to fraction form
    112,963.59/169,341.71 = 39,039.75/x
  3. Step 3: Cross multiply
    112,963.59x = 169,341.71 × 39,039.75
  4. Step 4: Simplify right side
    112,963.59x = 6,611,057,827.77
  5. Step 5: Solve for x
    x = 6,611,057,827.77/112,963.59
  6. Step 6: Final answer
    x = 58,523.79

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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.