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Finding the Fourth Proportional to 180,230.89, 248,719.90 and 98,559.50

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Solution

The fourth proportional to 180,230.89, 248,719.90 and 98,559.50 is: 136,012.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,230.89 : 248,719.90 = 98,559.50 : x
  2. Step 2: Convert to fraction form
    180,230.89/248,719.90 = 98,559.50/x
  3. Step 3: Cross multiply
    180,230.89x = 248,719.90 × 98,559.50
  4. Step 4: Simplify right side
    180,230.89x = 24,513,708,984.05
  5. Step 5: Solve for x
    x = 24,513,708,984.05/180,230.89
  6. Step 6: Final answer
    x = 136,012.81

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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.