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Finding the Fourth Proportional to 5,141,749.92, 7,713,633.72 and 1,903,315.92

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Solution

The fourth proportional to 5,141,749.92, 7,713,633.72 and 1,903,315.92 is: 2,855,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,141,749.92 : 7,713,633.72 = 1,903,315.92 : x
  2. Step 2: Convert to fraction form
    5,141,749.92/7,713,633.72 = 1,903,315.92/x
  3. Step 3: Cross multiply
    5,141,749.92x = 7,713,633.72 × 1,903,315.92
  4. Step 4: Simplify right side
    5,141,749.92x = 14,681,481,860,324.82
  5. Step 5: Solve for x
    x = 14,681,481,860,324.82/5,141,749.92
  6. Step 6: Final answer
    x = 2,855,347.32

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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.