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Finding the Fourth Proportional to 308,043.07, 425,099.43 and 173,907.07

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Solution

The fourth proportional to 308,043.07, 425,099.43 and 173,907.07 is: 239,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,043.07 : 425,099.43 = 173,907.07 : x
  2. Step 2: Convert to fraction form
    308,043.07/425,099.43 = 173,907.07/x
  3. Step 3: Cross multiply
    308,043.07x = 425,099.43 × 173,907.07
  4. Step 4: Simplify right side
    308,043.07x = 73,927,794,204.47
  5. Step 5: Solve for x
    x = 73,927,794,204.47/308,043.07
  6. Step 6: Final answer
    x = 239,991.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.