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Finding the Fourth Proportional to 201,878.10, 302,489.10 and 173,665.80

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Solution

The fourth proportional to 201,878.10, 302,489.10 and 173,665.80 is: 260,216.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,878.10 : 302,489.10 = 173,665.80 : x
  2. Step 2: Convert to fraction form
    201,878.10/302,489.10 = 173,665.80/x
  3. Step 3: Cross multiply
    201,878.10x = 302,489.10 × 173,665.80
  4. Step 4: Simplify right side
    201,878.10x = 52,532,011,542.78
  5. Step 5: Solve for x
    x = 52,532,011,542.78/201,878.10
  6. Step 6: Final answer
    x = 260,216.49

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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.