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Finding the Fourth Proportional to 115,898.40, 173,847.60 and 49,340.70

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Solution

The fourth proportional to 115,898.40, 173,847.60 and 49,340.70 is: 74,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,898.40 : 173,847.60 = 49,340.70 : x
  2. Step 2: Convert to fraction form
    115,898.40/173,847.60 = 49,340.70/x
  3. Step 3: Cross multiply
    115,898.40x = 173,847.60 × 49,340.70
  4. Step 4: Simplify right side
    115,898.40x = 8,577,762,277.32
  5. Step 5: Solve for x
    x = 8,577,762,277.32/115,898.40
  6. Step 6: Final answer
    x = 74,011.05

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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.