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Finding the Fourth Proportional to 180,155.88, 248,580.90 and 113,057.64

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Solution

The fourth proportional to 180,155.88, 248,580.90 and 113,057.64 is: 155,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,155.88 : 248,580.90 = 113,057.64 : x
  2. Step 2: Convert to fraction form
    180,155.88/248,580.90 = 113,057.64/x
  3. Step 3: Cross multiply
    180,155.88x = 248,580.90 × 113,057.64
  4. Step 4: Simplify right side
    180,155.88x = 28,103,969,903.08
  5. Step 5: Solve for x
    x = 28,103,969,903.08/180,155.88
  6. Step 6: Final answer
    x = 155,998.07

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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.