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Finding the Fourth Proportional to 243,683.67, 365,525.55 and 66,216.90

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Solution

The fourth proportional to 243,683.67, 365,525.55 and 66,216.90 is: 99,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,683.67 : 365,525.55 = 66,216.90 : x
  2. Step 2: Convert to fraction form
    243,683.67/365,525.55 = 66,216.90/x
  3. Step 3: Cross multiply
    243,683.67x = 365,525.55 × 66,216.90
  4. Step 4: Simplify right side
    243,683.67x = 24,203,968,791.80
  5. Step 5: Solve for x
    x = 24,203,968,791.80/243,683.67
  6. Step 6: Final answer
    x = 99,325.36

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1.5x scale

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.