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Finding the Fourth Proportional to 255,064,775.00, 351,978,066.55 and 142,040,096.69

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Solution

The fourth proportional to 255,064,775.00, 351,978,066.55 and 142,040,096.69 is: 196,009,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,064,775.00 : 351,978,066.55 = 142,040,096.69 : x
  2. Step 2: Convert to fraction form
    255,064,775.00/351,978,066.55 = 142,040,096.69/x
  3. Step 3: Cross multiply
    255,064,775.00x = 351,978,066.55 × 142,040,096.69
  4. Step 4: Simplify right side
    255,064,775.00x = 49,994,998,606,318,264
  5. Step 5: Solve for x
    x = 49,994,998,606,318,264/255,064,775.00
  6. Step 6: Final answer
    x = 196,009,027.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.