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Finding the Fourth Proportional to 165,800,106.90, 248,221,863.45 and 165,800,106.90

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Solution

The fourth proportional to 165,800,106.90, 248,221,863.45 and 165,800,106.90 is: 248,221,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,800,106.90 : 248,221,863.45 = 165,800,106.90 : x
  2. Step 2: Convert to fraction form
    165,800,106.90/248,221,863.45 = 165,800,106.90/x
  3. Step 3: Cross multiply
    165,800,106.90x = 248,221,863.45 × 165,800,106.90
  4. Step 4: Simplify right side
    165,800,106.90x = 41,155,211,494,927,200
  5. Step 5: Solve for x
    x = 41,155,211,494,927,200/165,800,106.90
  6. Step 6: Final answer
    x = 248,221,863.45

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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.