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Finding the Fourth Proportional to 55,306,906.30, 77,286,179.75 and 55,306,906.30

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Solution

The fourth proportional to 55,306,906.30, 77,286,179.75 and 55,306,906.30 is: 77,286,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,306,906.30 : 77,286,179.75 = 55,306,906.30 : x
  2. Step 2: Convert to fraction form
    55,306,906.30/77,286,179.75 = 55,306,906.30/x
  3. Step 3: Cross multiply
    55,306,906.30x = 77,286,179.75 × 55,306,906.30
  4. Step 4: Simplify right side
    55,306,906.30x = 4,274,459,501,718,207
  5. Step 5: Solve for x
    x = 4,274,459,501,718,207/55,306,906.30
  6. Step 6: Final answer
    x = 77,286,179.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.