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Finding the Fourth Proportional to 68,243,458, 102,365,187 and 22,805,252.50

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Solution

The fourth proportional to 68,243,458, 102,365,187 and 22,805,252.50 is: 34,207,878.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,243,458 : 102,365,187 = 22,805,252.50 : x
  2. Step 2: Convert to fraction form
    68,243,458/102,365,187 = 22,805,252.50/x
  3. Step 3: Cross multiply
    68,243,458x = 102,365,187 × 22,805,252.50
  4. Step 4: Simplify right side
    68,243,458x = 2,334,463,936,744,717.50
  5. Step 5: Solve for x
    x = 2,334,463,936,744,717.50/68,243,458
  6. Step 6: Final answer
    x = 34,207,878.75

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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.