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Finding the Fourth Proportional to 246,051.35, 368,945.80 and 127,428.47

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Solution

The fourth proportional to 246,051.35, 368,945.80 and 127,428.47 is: 191,074.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,051.35 : 368,945.80 = 127,428.47 : x
  2. Step 2: Convert to fraction form
    246,051.35/368,945.80 = 127,428.47/x
  3. Step 3: Cross multiply
    246,051.35x = 368,945.80 × 127,428.47
  4. Step 4: Simplify right side
    246,051.35x = 47,014,196,643.63
  5. Step 5: Solve for x
    x = 47,014,196,643.63/246,051.35
  6. Step 6: Final answer
    x = 191,074.74

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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.