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Finding the Fourth Proportional to 173,958.40, 260,743.20 and 99,114.40

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Solution

The fourth proportional to 173,958.40, 260,743.20 and 99,114.40 is: 148,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,958.40 : 260,743.20 = 99,114.40 : x
  2. Step 2: Convert to fraction form
    173,958.40/260,743.20 = 99,114.40/x
  3. Step 3: Cross multiply
    173,958.40x = 260,743.20 × 99,114.40
  4. Step 4: Simplify right side
    173,958.40x = 25,843,405,822.08
  5. Step 5: Solve for x
    x = 25,843,405,822.08/173,958.40
  6. Step 6: Final answer
    x = 148,560.84

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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.