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Finding the Fourth Proportional to 404,964.36, 607,371.82 and 148,740.91

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Solution

The fourth proportional to 404,964.36, 607,371.82 and 148,740.91 is: 223,083.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,964.36 : 607,371.82 = 148,740.91 : x
  2. Step 2: Convert to fraction form
    404,964.36/607,371.82 = 148,740.91/x
  3. Step 3: Cross multiply
    404,964.36x = 607,371.82 × 148,740.91
  4. Step 4: Simplify right side
    404,964.36x = 90,341,035,324.87
  5. Step 5: Solve for x
    x = 90,341,035,324.87/404,964.36
  6. Step 6: Final answer
    x = 223,083.92

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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.