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Finding the Fourth Proportional to 308,656.80, 425,944.08 and 174,525.60

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Solution

The fourth proportional to 308,656.80, 425,944.08 and 174,525.60 is: 240,844.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,656.80 : 425,944.08 = 174,525.60 : x
  2. Step 2: Convert to fraction form
    308,656.80/425,944.08 = 174,525.60/x
  3. Step 3: Cross multiply
    308,656.80x = 425,944.08 × 174,525.60
  4. Step 4: Simplify right side
    308,656.80x = 74,338,146,128.45
  5. Step 5: Solve for x
    x = 74,338,146,128.45/308,656.80
  6. Step 6: Final answer
    x = 240,844.03

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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.