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Finding the Fourth Proportional to 200,136.76, 276,200.98 and 115,281.16

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Solution

The fourth proportional to 200,136.76, 276,200.98 and 115,281.16 is: 159,095.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,136.76 : 276,200.98 = 115,281.16 : x
  2. Step 2: Convert to fraction form
    200,136.76/276,200.98 = 115,281.16/x
  3. Step 3: Cross multiply
    200,136.76x = 276,200.98 × 115,281.16
  4. Step 4: Simplify right side
    200,136.76x = 31,840,770,590.92
  5. Step 5: Solve for x
    x = 31,840,770,590.92/200,136.76
  6. Step 6: Final answer
    x = 159,095.06

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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.