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Finding the Fourth Proportional to 113,772,195.54, 156,978,325.08 and 69,117,274.62

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Solution

The fourth proportional to 113,772,195.54, 156,978,325.08 and 69,117,274.62 is: 95,365,251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,772,195.54 : 156,978,325.08 = 69,117,274.62 : x
  2. Step 2: Convert to fraction form
    113,772,195.54/156,978,325.08 = 69,117,274.62/x
  3. Step 3: Cross multiply
    113,772,195.54x = 156,978,325.08 × 69,117,274.62
  4. Step 4: Simplify right side
    113,772,195.54x = 10,849,914,003,941,996
  5. Step 5: Solve for x
    x = 10,849,914,003,941,996/113,772,195.54
  6. Step 6: Final answer
    x = 95,365,251.17

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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.