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Finding the Fourth Proportional to 245,392.42, 368,089.20 and 74,615.70

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Solution

The fourth proportional to 245,392.42, 368,089.20 and 74,615.70 is: 111,923.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,392.42 : 368,089.20 = 74,615.70 : x
  2. Step 2: Convert to fraction form
    245,392.42/368,089.20 = 74,615.70/x
  3. Step 3: Cross multiply
    245,392.42x = 368,089.20 × 74,615.70
  4. Step 4: Simplify right side
    245,392.42x = 27,465,233,320.44
  5. Step 5: Solve for x
    x = 27,465,233,320.44/245,392.42
  6. Step 6: Final answer
    x = 111,923.72

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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.