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Finding the Fourth Proportional to 118,569.43, 163,679.18 and 75,606.51

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Solution

The fourth proportional to 118,569.43, 163,679.18 and 75,606.51 is: 104,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,569.43 : 163,679.18 = 75,606.51 : x
  2. Step 2: Convert to fraction form
    118,569.43/163,679.18 = 75,606.51/x
  3. Step 3: Cross multiply
    118,569.43x = 163,679.18 × 75,606.51
  4. Step 4: Simplify right side
    118,569.43x = 12,375,211,559.46
  5. Step 5: Solve for x
    x = 12,375,211,559.46/118,569.43
  6. Step 6: Final answer
    x = 104,371.01

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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.