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Finding the Fourth Proportional to 266,703.96, 368,047.86 and 151,989.42

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Solution

The fourth proportional to 266,703.96, 368,047.86 and 151,989.42 is: 209,743.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,703.96 : 368,047.86 = 151,989.42 : x
  2. Step 2: Convert to fraction form
    266,703.96/368,047.86 = 151,989.42/x
  3. Step 3: Cross multiply
    266,703.96x = 368,047.86 × 151,989.42
  4. Step 4: Simplify right side
    266,703.96x = 55,939,380,773.64
  5. Step 5: Solve for x
    x = 55,939,380,773.64/266,703.96
  6. Step 6: Final answer
    x = 209,743.35

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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.