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Finding the Fourth Proportional to 245,761.86, 368,052.30 and 140,260.98

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Solution

The fourth proportional to 245,761.86, 368,052.30 and 140,260.98 is: 210,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,761.86 : 368,052.30 = 140,260.98 : x
  2. Step 2: Convert to fraction form
    245,761.86/368,052.30 = 140,260.98/x
  3. Step 3: Cross multiply
    245,761.86x = 368,052.30 × 140,260.98
  4. Step 4: Simplify right side
    245,761.86x = 51,623,376,289.25
  5. Step 5: Solve for x
    x = 51,623,376,289.25/245,761.86
  6. Step 6: Final answer
    x = 210,054.47

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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.