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Finding the Fourth Proportional to 99,702,939.15, 149,554,408.73 and 99,702,939.15

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Solution

The fourth proportional to 99,702,939.15, 149,554,408.73 and 99,702,939.15 is: 149,554,408.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,702,939.15 : 149,554,408.73 = 99,702,939.15 : x
  2. Step 2: Convert to fraction form
    99,702,939.15/149,554,408.73 = 99,702,939.15/x
  3. Step 3: Cross multiply
    99,702,939.15x = 149,554,408.73 × 99,702,939.15
  4. Step 4: Simplify right side
    99,702,939.15x = 14,911,014,112,722,904
  5. Step 5: Solve for x
    x = 14,911,014,112,722,904/99,702,939.15
  6. Step 6: Final answer
    x = 149,554,408.73

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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.