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Finding the Fourth Proportional to 68,802,792.50, 94,926,474.91 and 39,028,537.10

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Solution

The fourth proportional to 68,802,792.50, 94,926,474.91 and 39,028,537.10 is: 53,847,254.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,802,792.50 : 94,926,474.91 = 39,028,537.10 : x
  2. Step 2: Convert to fraction form
    68,802,792.50/94,926,474.91 = 39,028,537.10/x
  3. Step 3: Cross multiply
    68,802,792.50x = 94,926,474.91 × 39,028,537.10
  4. Step 4: Simplify right side
    68,802,792.50x = 3,704,841,447,797,154
  5. Step 5: Solve for x
    x = 3,704,841,447,797,154/68,802,792.50
  6. Step 6: Final answer
    x = 53,847,254.06

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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.