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Finding the Fourth Proportional to 261,136.66, 360,245.73 and 189,359.32

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Solution

The fourth proportional to 261,136.66, 360,245.73 and 189,359.32 is: 261,226.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,136.66 : 360,245.73 = 189,359.32 : x
  2. Step 2: Convert to fraction form
    261,136.66/360,245.73 = 189,359.32/x
  3. Step 3: Cross multiply
    261,136.66x = 360,245.73 × 189,359.32
  4. Step 4: Simplify right side
    261,136.66x = 68,215,886,465.70
  5. Step 5: Solve for x
    x = 68,215,886,465.70/261,136.66
  6. Step 6: Final answer
    x = 261,226.77

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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.