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Finding the Fourth Proportional to 245,774.49, 368,682.21 and 65,885.55

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Solution

The fourth proportional to 245,774.49, 368,682.21 and 65,885.55 is: 98,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,774.49 : 368,682.21 = 65,885.55 : x
  2. Step 2: Convert to fraction form
    245,774.49/368,682.21 = 65,885.55/x
  3. Step 3: Cross multiply
    245,774.49x = 368,682.21 × 65,885.55
  4. Step 4: Simplify right side
    245,774.49x = 24,290,830,181.07
  5. Step 5: Solve for x
    x = 24,290,830,181.07/245,774.49
  6. Step 6: Final answer
    x = 98,833.81

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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.