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Finding the Fourth Proportional to 243,745.63, 365,626.05 and 66,256.41

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Solution

The fourth proportional to 243,745.63, 365,626.05 and 66,256.41 is: 99,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,745.63 : 365,626.05 = 66,256.41 : x
  2. Step 2: Convert to fraction form
    243,745.63/365,626.05 = 66,256.41/x
  3. Step 3: Cross multiply
    243,745.63x = 365,626.05 × 66,256.41
  4. Step 4: Simplify right side
    243,745.63x = 24,225,069,475.48
  5. Step 5: Solve for x
    x = 24,225,069,475.48/243,745.63
  6. Step 6: Final answer
    x = 99,386.68

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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.