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Finding the Fourth Proportional to 368,688.80, 552,553.88 and 166,136.16

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Solution

The fourth proportional to 368,688.80, 552,553.88 and 166,136.16 is: 248,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,688.80 : 552,553.88 = 166,136.16 : x
  2. Step 2: Convert to fraction form
    368,688.80/552,553.88 = 166,136.16/x
  3. Step 3: Cross multiply
    368,688.80x = 552,553.88 × 166,136.16
  4. Step 4: Simplify right side
    368,688.80x = 91,799,179,816.30
  5. Step 5: Solve for x
    x = 91,799,179,816.30/368,688.80
  6. Step 6: Final answer
    x = 248,988.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.