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Finding the Fourth Proportional to 255,792.20, 353,018.19 and 191,149.18

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Solution

The fourth proportional to 255,792.20, 353,018.19 and 191,149.18 is: 263,804.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,792.20 : 353,018.19 = 191,149.18 : x
  2. Step 2: Convert to fraction form
    255,792.20/353,018.19 = 191,149.18/x
  3. Step 3: Cross multiply
    255,792.20x = 353,018.19 × 191,149.18
  4. Step 4: Simplify right side
    255,792.20x = 67,479,137,543.58
  5. Step 5: Solve for x
    x = 67,479,137,543.58/255,792.20
  6. Step 6: Final answer
    x = 263,804.52

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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.