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Finding the Fourth Proportional to 246,061.86, 368,961.51 and 127,438.98

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Solution

The fourth proportional to 246,061.86, 368,961.51 and 127,438.98 is: 191,090.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,061.86 : 368,961.51 = 127,438.98 : x
  2. Step 2: Convert to fraction form
    246,061.86/368,961.51 = 127,438.98/x
  3. Step 3: Cross multiply
    246,061.86x = 368,961.51 × 127,438.98
  4. Step 4: Simplify right side
    246,061.86x = 47,020,078,493.66
  5. Step 5: Solve for x
    x = 47,020,078,493.66/246,061.86
  6. Step 6: Final answer
    x = 191,090.48

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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.