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Finding the Fourth Proportional to 217,003.98, 299,491.08 and 121,492.23

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Solution

The fourth proportional to 217,003.98, 299,491.08 and 121,492.23 is: 167,673.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,003.98 : 299,491.08 = 121,492.23 : x
  2. Step 2: Convert to fraction form
    217,003.98/299,491.08 = 121,492.23/x
  3. Step 3: Cross multiply
    217,003.98x = 299,491.08 × 121,492.23
  4. Step 4: Simplify right side
    217,003.98x = 36,385,839,174.31
  5. Step 5: Solve for x
    x = 36,385,839,174.31/217,003.98
  6. Step 6: Final answer
    x = 167,673.60

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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.