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Finding the Fourth Proportional to 152,742.60, 229,113.90 and 133,059.60

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Solution

The fourth proportional to 152,742.60, 229,113.90 and 133,059.60 is: 199,589.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,742.60 : 229,113.90 = 133,059.60 : x
  2. Step 2: Convert to fraction form
    152,742.60/229,113.90 = 133,059.60/x
  3. Step 3: Cross multiply
    152,742.60x = 229,113.90 × 133,059.60
  4. Step 4: Simplify right side
    152,742.60x = 30,485,803,888.44
  5. Step 5: Solve for x
    x = 30,485,803,888.44/152,742.60
  6. Step 6: Final answer
    x = 199,589.40

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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.