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Finding the Fourth Proportional to 188,964,281.25, 283,446,425.52 and 45,357,113.25

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Solution

The fourth proportional to 188,964,281.25, 283,446,425.52 and 45,357,113.25 is: 68,035,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,964,281.25 : 283,446,425.52 = 45,357,113.25 : x
  2. Step 2: Convert to fraction form
    188,964,281.25/283,446,425.52 = 45,357,113.25/x
  3. Step 3: Cross multiply
    188,964,281.25x = 283,446,425.52 × 45,357,113.25
  4. Step 4: Simplify right side
    188,964,281.25x = 12,856,311,622,618,330
  5. Step 5: Solve for x
    x = 12,856,311,622,618,330/188,964,281.25
  6. Step 6: Final answer
    x = 68,035,670.75

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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.