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Finding the Fourth Proportional to 100,579.35, 141,204.75 and 100,579.35

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Solution

The fourth proportional to 100,579.35, 141,204.75 and 100,579.35 is: 141,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,579.35 : 141,204.75 = 100,579.35 : x
  2. Step 2: Convert to fraction form
    100,579.35/141,204.75 = 100,579.35/x
  3. Step 3: Cross multiply
    100,579.35x = 141,204.75 × 100,579.35
  4. Step 4: Simplify right side
    100,579.35x = 14,202,281,971.91
  5. Step 5: Solve for x
    x = 14,202,281,971.91/100,579.35
  6. Step 6: Final answer
    x = 141,204.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.