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Finding the Fourth Proportional to 145,052.82, 200,121.57 and 94,780.98

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Solution

The fourth proportional to 145,052.82, 200,121.57 and 94,780.98 is: 130,764.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,052.82 : 200,121.57 = 94,780.98 : x
  2. Step 2: Convert to fraction form
    145,052.82/200,121.57 = 94,780.98/x
  3. Step 3: Cross multiply
    145,052.82x = 200,121.57 × 94,780.98
  4. Step 4: Simplify right side
    145,052.82x = 18,967,718,523.74
  5. Step 5: Solve for x
    x = 18,967,718,523.74/145,052.82
  6. Step 6: Final answer
    x = 130,764.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.