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Finding the Fourth Proportional to 68,278,322.90, 102,417,484.35 and 68,278,322.90

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Solution

The fourth proportional to 68,278,322.90, 102,417,484.35 and 68,278,322.90 is: 102,417,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,278,322.90 : 102,417,484.35 = 68,278,322.90 : x
  2. Step 2: Convert to fraction form
    68,278,322.90/102,417,484.35 = 68,278,322.90/x
  3. Step 3: Cross multiply
    68,278,322.90x = 102,417,484.35 × 68,278,322.90
  4. Step 4: Simplify right side
    68,278,322.90x = 6,992,894,067,054,997
  5. Step 5: Solve for x
    x = 6,992,894,067,054,997/68,278,322.90
  6. Step 6: Final answer
    x = 102,417,484.35

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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.