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Finding the Fourth Proportional to 5,136,936.86, 7,706,509.56 and 1,493,730.02

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Solution

The fourth proportional to 5,136,936.86, 7,706,509.56 and 1,493,730.02 is: 2,240,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136,936.86 : 7,706,509.56 = 1,493,730.02 : x
  2. Step 2: Convert to fraction form
    5,136,936.86/7,706,509.56 = 1,493,730.02/x
  3. Step 3: Cross multiply
    5,136,936.86x = 7,706,509.56 × 1,493,730.02
  4. Step 4: Simplify right side
    5,136,936.86x = 11,511,444,679,188.99
  5. Step 5: Solve for x
    x = 11,511,444,679,188.99/5,136,936.86
  6. Step 6: Final answer
    x = 2,240,916.13

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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.