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Finding the Fourth Proportional to 5,113,703.04, 7,673,978.88 and 2,121,889.92

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Solution

The fourth proportional to 5,113,703.04, 7,673,978.88 and 2,121,889.92 is: 3,184,255.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113,703.04 : 7,673,978.88 = 2,121,889.92 : x
  2. Step 2: Convert to fraction form
    5,113,703.04/7,673,978.88 = 2,121,889.92/x
  3. Step 3: Cross multiply
    5,113,703.04x = 7,673,978.88 × 2,121,889.92
  4. Step 4: Simplify right side
    5,113,703.04x = 16,283,338,431,764.89
  5. Step 5: Solve for x
    x = 16,283,338,431,764.89/5,113,703.04
  6. Step 6: Final answer
    x = 3,184,255.77

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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.