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Finding the Fourth Proportional to 255,794.20, 353,020.95 and 191,151.18

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Solution

The fourth proportional to 255,794.20, 353,020.95 and 191,151.18 is: 263,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,794.20 : 353,020.95 = 191,151.18 : x
  2. Step 2: Convert to fraction form
    255,794.20/353,020.95 = 191,151.18/x
  3. Step 3: Cross multiply
    255,794.20x = 353,020.95 × 191,151.18
  4. Step 4: Simplify right side
    255,794.20x = 67,480,371,157.22
  5. Step 5: Solve for x
    x = 67,480,371,157.22/255,794.20
  6. Step 6: Final answer
    x = 263,807.28

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1.5x scale

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.