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Finding the Fourth Proportional to 272,241.94, 375,678.45 and 151,380.64

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Solution

The fourth proportional to 272,241.94, 375,678.45 and 151,380.64 is: 208,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,241.94 : 375,678.45 = 151,380.64 : x
  2. Step 2: Convert to fraction form
    272,241.94/375,678.45 = 151,380.64/x
  3. Step 3: Cross multiply
    272,241.94x = 375,678.45 × 151,380.64
  4. Step 4: Simplify right side
    272,241.94x = 56,870,442,316.82
  5. Step 5: Solve for x
    x = 56,870,442,316.82/272,241.94
  6. Step 6: Final answer
    x = 208,896.70

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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.