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Finding the Fourth Proportional to 152,590.26, 210,747 and 104,109

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Solution

The fourth proportional to 152,590.26, 210,747 and 104,109 is: 143,788.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,590.26 : 210,747 = 104,109 : x
  2. Step 2: Convert to fraction form
    152,590.26/210,747 = 104,109/x
  3. Step 3: Cross multiply
    152,590.26x = 210,747 × 104,109
  4. Step 4: Simplify right side
    152,590.26x = 21,940,659,423
  5. Step 5: Solve for x
    x = 21,940,659,423/152,590.26
  6. Step 6: Final answer
    x = 143,788.07

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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.