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Finding the Fourth Proportional to 216,029.40, 324,044.10 and 149,544.60

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Solution

The fourth proportional to 216,029.40, 324,044.10 and 149,544.60 is: 224,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,029.40 : 324,044.10 = 149,544.60 : x
  2. Step 2: Convert to fraction form
    216,029.40/324,044.10 = 149,544.60/x
  3. Step 3: Cross multiply
    216,029.40x = 324,044.10 × 149,544.60
  4. Step 4: Simplify right side
    216,029.40x = 48,459,045,316.86
  5. Step 5: Solve for x
    x = 48,459,045,316.86/216,029.40
  6. Step 6: Final answer
    x = 224,316.90

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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.