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Finding the Fourth Proportional to 251,010,078.30, 376,515,117.45 and 251,010,078.30

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Solution

The fourth proportional to 251,010,078.30, 376,515,117.45 and 251,010,078.30 is: 376,515,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,010,078.30 : 376,515,117.45 = 251,010,078.30 : x
  2. Step 2: Convert to fraction form
    251,010,078.30/376,515,117.45 = 251,010,078.30/x
  3. Step 3: Cross multiply
    251,010,078.30x = 376,515,117.45 × 251,010,078.30
  4. Step 4: Simplify right side
    251,010,078.30x = 94,509,089,112,258,192
  5. Step 5: Solve for x
    x = 94,509,089,112,258,192/251,010,078.30
  6. Step 6: Final answer
    x = 376,515,117.45

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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.