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Finding the Fourth Proportional to 426,924.15, 640,386.24 and 160,744.38

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Solution

The fourth proportional to 426,924.15, 640,386.24 and 160,744.38 is: 241,116.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,924.15 : 640,386.24 = 160,744.38 : x
  2. Step 2: Convert to fraction form
    426,924.15/640,386.24 = 160,744.38/x
  3. Step 3: Cross multiply
    426,924.15x = 640,386.24 × 160,744.38
  4. Step 4: Simplify right side
    426,924.15x = 102,938,489,109.33
  5. Step 5: Solve for x
    x = 102,938,489,109.33/426,924.15
  6. Step 6: Final answer
    x = 241,116.58

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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.