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Finding the Fourth Proportional to 169,859.08, 234,408.52 and 93,381.40

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Solution

The fourth proportional to 169,859.08, 234,408.52 and 93,381.40 is: 128,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,859.08 : 234,408.52 = 93,381.40 : x
  2. Step 2: Convert to fraction form
    169,859.08/234,408.52 = 93,381.40/x
  3. Step 3: Cross multiply
    169,859.08x = 234,408.52 × 93,381.40
  4. Step 4: Simplify right side
    169,859.08x = 21,889,395,769.53
  5. Step 5: Solve for x
    x = 21,889,395,769.53/169,859.08
  6. Step 6: Final answer
    x = 128,867.98

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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.