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Finding the Fourth Proportional to 115,866.90, 173,800.35 and 113,898.60

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Solution

The fourth proportional to 115,866.90, 173,800.35 and 113,898.60 is: 170,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,866.90 : 173,800.35 = 113,898.60 : x
  2. Step 2: Convert to fraction form
    115,866.90/173,800.35 = 113,898.60/x
  3. Step 3: Cross multiply
    115,866.90x = 173,800.35 × 113,898.60
  4. Step 4: Simplify right side
    115,866.90x = 19,795,616,544.51
  5. Step 5: Solve for x
    x = 19,795,616,544.51/115,866.90
  6. Step 6: Final answer
    x = 170,847.90

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1.5x scale

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.