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Finding the Fourth Proportional to 404,125.47, 606,012.54 and 115,873.64

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Solution

The fourth proportional to 404,125.47, 606,012.54 and 115,873.64 is: 173,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,125.47 : 606,012.54 = 115,873.64 : x
  2. Step 2: Convert to fraction form
    404,125.47/606,012.54 = 115,873.64/x
  3. Step 3: Cross multiply
    404,125.47x = 606,012.54 × 115,873.64
  4. Step 4: Simplify right side
    404,125.47x = 70,220,877,703.40
  5. Step 5: Solve for x
    x = 70,220,877,703.40/404,125.47
  6. Step 6: Final answer
    x = 173,760.09

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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.