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Finding the Fourth Proportional to 404,573.60, 606,641.70 and 167,940.20

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Solution

The fourth proportional to 404,573.60, 606,641.70 and 167,940.20 is: 251,819.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,573.60 : 606,641.70 = 167,940.20 : x
  2. Step 2: Convert to fraction form
    404,573.60/606,641.70 = 167,940.20/x
  3. Step 3: Cross multiply
    404,573.60x = 606,641.70 × 167,940.20
  4. Step 4: Simplify right side
    404,573.60x = 101,879,528,426.34
  5. Step 5: Solve for x
    x = 101,879,528,426.34/404,573.60
  6. Step 6: Final answer
    x = 251,819.52

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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.