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Finding the Fourth Proportional to 180,197.67, 248,662.62 and 99,620.40

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Solution

The fourth proportional to 180,197.67, 248,662.62 and 99,620.40 is: 137,470.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,197.67 : 248,662.62 = 99,620.40 : x
  2. Step 2: Convert to fraction form
    180,197.67/248,662.62 = 99,620.40/x
  3. Step 3: Cross multiply
    180,197.67x = 248,662.62 × 99,620.40
  4. Step 4: Simplify right side
    180,197.67x = 24,771,869,669.45
  5. Step 5: Solve for x
    x = 24,771,869,669.45/180,197.67
  6. Step 6: Final answer
    x = 137,470.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.