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Finding the Fourth Proportional to 272,663.61, 376,274.94 and 151,801.77

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Solution

The fourth proportional to 272,663.61, 376,274.94 and 151,801.77 is: 209,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,663.61 : 376,274.94 = 151,801.77 : x
  2. Step 2: Convert to fraction form
    272,663.61/376,274.94 = 151,801.77/x
  3. Step 3: Cross multiply
    272,663.61x = 376,274.94 × 151,801.77
  4. Step 4: Simplify right side
    272,663.61x = 57,119,201,898.64
  5. Step 5: Solve for x
    x = 57,119,201,898.64/272,663.61
  6. Step 6: Final answer
    x = 209,485.97

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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.