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Finding the Fourth Proportional to 230,978,889, 346,484,274.91 and 67,218,002.06

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Solution

The fourth proportional to 230,978,889, 346,484,274.91 and 67,218,002.06 is: 100,831,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,978,889 : 346,484,274.91 = 67,218,002.06 : x
  2. Step 2: Convert to fraction form
    230,978,889/346,484,274.91 = 67,218,002.06/x
  3. Step 3: Cross multiply
    230,978,889x = 346,484,274.91 × 67,218,002.06
  4. Step 4: Simplify right side
    230,978,889x = 23,289,980,702,757,524
  5. Step 5: Solve for x
    x = 23,289,980,702,757,524/230,978,889
  6. Step 6: Final answer
    x = 100,831,642.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.