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Finding the Fourth Proportional to 105,459.62, 158,187.60 and 26,572.10

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Solution

The fourth proportional to 105,459.62, 158,187.60 and 26,572.10 is: 39,857.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,459.62 : 158,187.60 = 26,572.10 : x
  2. Step 2: Convert to fraction form
    105,459.62/158,187.60 = 26,572.10/x
  3. Step 3: Cross multiply
    105,459.62x = 158,187.60 × 26,572.10
  4. Step 4: Simplify right side
    105,459.62x = 4,203,376,725.96
  5. Step 5: Solve for x
    x = 4,203,376,725.96/105,459.62
  6. Step 6: Final answer
    x = 39,857.69

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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.