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Finding the Fourth Proportional to 308,203.16, 425,328.78 and 174,067.16

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Solution

The fourth proportional to 308,203.16, 425,328.78 and 174,067.16 is: 240,217.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,203.16 : 425,328.78 = 174,067.16 : x
  2. Step 2: Convert to fraction form
    308,203.16/425,328.78 = 174,067.16/x
  3. Step 3: Cross multiply
    308,203.16x = 425,328.78 × 174,067.16
  4. Step 4: Simplify right side
    308,203.16x = 74,035,772,800.86
  5. Step 5: Solve for x
    x = 74,035,772,800.86/308,203.16
  6. Step 6: Final answer
    x = 240,217.44

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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.