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Finding the Fourth Proportional to 302,611, 453,662.40 and 131,705.08

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Solution

The fourth proportional to 302,611, 453,662.40 and 131,705.08 is: 197,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,611 : 453,662.40 = 131,705.08 : x
  2. Step 2: Convert to fraction form
    302,611/453,662.40 = 131,705.08/x
  3. Step 3: Cross multiply
    302,611x = 453,662.40 × 131,705.08
  4. Step 4: Simplify right side
    302,611x = 59,749,642,684.99
  5. Step 5: Solve for x
    x = 59,749,642,684.99/302,611
  6. Step 6: Final answer
    x = 197,447.03

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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.