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Finding the Fourth Proportional to 125,505,915.90, 188,258,873.86 and 125,505,915.90

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Solution

The fourth proportional to 125,505,915.90, 188,258,873.86 and 125,505,915.90 is: 188,258,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,505,915.90 : 188,258,873.86 = 125,505,915.90 : x
  2. Step 2: Convert to fraction form
    125,505,915.90/188,258,873.86 = 125,505,915.90/x
  3. Step 3: Cross multiply
    125,505,915.90x = 188,258,873.86 × 125,505,915.90
  4. Step 4: Simplify right side
    125,505,915.90x = 23,627,602,390,101,872
  5. Step 5: Solve for x
    x = 23,627,602,390,101,872/125,505,915.90
  6. Step 6: Final answer
    x = 188,258,873.86

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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.