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Finding the Fourth Proportional to 200,586.68, 300,898.57 and 72,534.93

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Solution

The fourth proportional to 200,586.68, 300,898.57 and 72,534.93 is: 108,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,586.68 : 300,898.57 = 72,534.93 : x
  2. Step 2: Convert to fraction form
    200,586.68/300,898.57 = 72,534.93/x
  3. Step 3: Cross multiply
    200,586.68x = 300,898.57 × 72,534.93
  4. Step 4: Simplify right side
    200,586.68x = 21,825,655,684.44
  5. Step 5: Solve for x
    x = 21,825,655,684.44/200,586.68
  6. Step 6: Final answer
    x = 108,809.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.