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Finding the Fourth Proportional to 189,157.80, 283,820.28 and 99,179.01

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Solution

The fourth proportional to 189,157.80, 283,820.28 and 99,179.01 is: 148,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,157.80 : 283,820.28 = 99,179.01 : x
  2. Step 2: Convert to fraction form
    189,157.80/283,820.28 = 99,179.01/x
  3. Step 3: Cross multiply
    189,157.80x = 283,820.28 × 99,179.01
  4. Step 4: Simplify right side
    189,157.80x = 28,149,014,388.32
  5. Step 5: Solve for x
    x = 28,149,014,388.32/189,157.80
  6. Step 6: Final answer
    x = 148,812.34

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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.