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Finding the Fourth Proportional to 252,768.56, 379,152.81 and 65,780.06

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Solution

The fourth proportional to 252,768.56, 379,152.81 and 65,780.06 is: 98,670.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,768.56 : 379,152.81 = 65,780.06 : x
  2. Step 2: Convert to fraction form
    252,768.56/379,152.81 = 65,780.06/x
  3. Step 3: Cross multiply
    252,768.56x = 379,152.81 × 65,780.06
  4. Step 4: Simplify right side
    252,768.56x = 24,940,692,695.20
  5. Step 5: Solve for x
    x = 24,940,692,695.20/252,768.56
  6. Step 6: Final answer
    x = 98,670.08

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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.