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Finding the Fourth Proportional to 404,491.16, 606,731.88 and 104,945.06

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Solution

The fourth proportional to 404,491.16, 606,731.88 and 104,945.06 is: 157,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,491.16 : 606,731.88 = 104,945.06 : x
  2. Step 2: Convert to fraction form
    404,491.16/606,731.88 = 104,945.06/x
  3. Step 3: Cross multiply
    404,491.16x = 606,731.88 × 104,945.06
  4. Step 4: Simplify right side
    404,491.16x = 63,673,513,550.51
  5. Step 5: Solve for x
    x = 63,673,513,550.51/404,491.16
  6. Step 6: Final answer
    x = 157,416.33

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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.