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Finding the Fourth Proportional to 169,790.84, 234,325.26 and 109,487

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Solution

The fourth proportional to 169,790.84, 234,325.26 and 109,487 is: 151,101.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,790.84 : 234,325.26 = 109,487 : x
  2. Step 2: Convert to fraction form
    169,790.84/234,325.26 = 109,487/x
  3. Step 3: Cross multiply
    169,790.84x = 234,325.26 × 109,487
  4. Step 4: Simplify right side
    169,790.84x = 25,655,569,741.62
  5. Step 5: Solve for x
    x = 25,655,569,741.62/169,790.84
  6. Step 6: Final answer
    x = 151,101.02

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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.