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Finding the Fourth Proportional to 266,661.30, 367,985.48 and 157,771.28

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Solution

The fourth proportional to 266,661.30, 367,985.48 and 157,771.28 is: 217,720.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,661.30 : 367,985.48 = 157,771.28 : x
  2. Step 2: Convert to fraction form
    266,661.30/367,985.48 = 157,771.28/x
  3. Step 3: Cross multiply
    266,661.30x = 367,985.48 × 157,771.28
  4. Step 4: Simplify right side
    266,661.30x = 58,057,537,572.23
  5. Step 5: Solve for x
    x = 58,057,537,572.23/266,661.30
  6. Step 6: Final answer
    x = 217,720.15

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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.