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Finding the Fourth Proportional to 308,717.04, 426,017.88 and 174,583.92

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Solution

The fourth proportional to 308,717.04, 426,017.88 and 174,583.92 is: 240,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,717.04 : 426,017.88 = 174,583.92 : x
  2. Step 2: Convert to fraction form
    308,717.04/426,017.88 = 174,583.92/x
  3. Step 3: Cross multiply
    308,717.04x = 426,017.88 × 174,583.92
  4. Step 4: Simplify right side
    308,717.04x = 74,375,871,480.49
  5. Step 5: Solve for x
    x = 74,375,871,480.49/308,717.04
  6. Step 6: Final answer
    x = 240,919.23

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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.