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Finding the Fourth Proportional to 246,876.56, 370,240.32 and 78,390.08

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Solution

The fourth proportional to 246,876.56, 370,240.32 and 78,390.08 is: 117,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,876.56 : 370,240.32 = 78,390.08 : x
  2. Step 2: Convert to fraction form
    246,876.56/370,240.32 = 78,390.08/x
  3. Step 3: Cross multiply
    246,876.56x = 370,240.32 × 78,390.08
  4. Step 4: Simplify right side
    246,876.56x = 29,023,168,304.03
  5. Step 5: Solve for x
    x = 29,023,168,304.03/246,876.56
  6. Step 6: Final answer
    x = 117,561.46

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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.