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Finding the Fourth Proportional to 217,337.25, 299,926.50 and 126,756.03

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Solution

The fourth proportional to 217,337.25, 299,926.50 and 126,756.03 is: 174,923.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,337.25 : 299,926.50 = 126,756.03 : x
  2. Step 2: Convert to fraction form
    217,337.25/299,926.50 = 126,756.03/x
  3. Step 3: Cross multiply
    217,337.25x = 299,926.50 × 126,756.03
  4. Step 4: Simplify right side
    217,337.25x = 38,017,492,431.80
  5. Step 5: Solve for x
    x = 38,017,492,431.80/217,337.25
  6. Step 6: Final answer
    x = 174,923.96

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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.