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Finding the Fourth Proportional to 308,657.80, 425,945.46 and 174,526.60

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Solution

The fourth proportional to 308,657.80, 425,945.46 and 174,526.60 is: 240,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,657.80 : 425,945.46 = 174,526.60 : x
  2. Step 2: Convert to fraction form
    308,657.80/425,945.46 = 174,526.60/x
  3. Step 3: Cross multiply
    308,657.80x = 425,945.46 × 174,526.60
  4. Step 4: Simplify right side
    308,657.80x = 74,338,812,919.24
  5. Step 5: Solve for x
    x = 74,338,812,919.24/308,657.80
  6. Step 6: Final answer
    x = 240,845.41

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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.