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Finding the Fourth Proportional to 357,063.64, 492,747.60 and 195,919.72

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Solution

The fourth proportional to 357,063.64, 492,747.60 and 195,919.72 is: 270,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,063.64 : 492,747.60 = 195,919.72 : x
  2. Step 2: Convert to fraction form
    357,063.64/492,747.60 = 195,919.72/x
  3. Step 3: Cross multiply
    357,063.64x = 492,747.60 × 195,919.72
  4. Step 4: Simplify right side
    357,063.64x = 96,538,971,822.67
  5. Step 5: Solve for x
    x = 96,538,971,822.67/357,063.64
  6. Step 6: Final answer
    x = 270,369.09

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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.