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Finding the Fourth Proportional to 404,973.26, 607,453.51 and 105,447.21

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Solution

The fourth proportional to 404,973.26, 607,453.51 and 105,447.21 is: 158,169.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,973.26 : 607,453.51 = 105,447.21 : x
  2. Step 2: Convert to fraction form
    404,973.26/607,453.51 = 105,447.21/x
  3. Step 3: Cross multiply
    404,973.26x = 607,453.51 × 105,447.21
  4. Step 4: Simplify right side
    404,973.26x = 64,054,277,834.21
  5. Step 5: Solve for x
    x = 64,054,277,834.21/404,973.26
  6. Step 6: Final answer
    x = 158,169.15

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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.