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Finding the Fourth Proportional to 351,265.70, 484,746.62 and 190,120.72

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Solution

The fourth proportional to 351,265.70, 484,746.62 and 190,120.72 is: 262,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,265.70 : 484,746.62 = 190,120.72 : x
  2. Step 2: Convert to fraction form
    351,265.70/484,746.62 = 190,120.72/x
  3. Step 3: Cross multiply
    351,265.70x = 484,746.62 × 190,120.72
  4. Step 4: Simplify right side
    351,265.70x = 92,160,376,411.97
  5. Step 5: Solve for x
    x = 92,160,376,411.97/351,265.70
  6. Step 6: Final answer
    x = 262,366.57

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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.