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Finding the Fourth Proportional to 107,627.15, 161,108.42 and 70,106.42

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Solution

The fourth proportional to 107,627.15, 161,108.42 and 70,106.42 is: 104,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,627.15 : 161,108.42 = 70,106.42 : x
  2. Step 2: Convert to fraction form
    107,627.15/161,108.42 = 70,106.42/x
  3. Step 3: Cross multiply
    107,627.15x = 161,108.42 × 70,106.42
  4. Step 4: Simplify right side
    107,627.15x = 11,294,733,401.98
  5. Step 5: Solve for x
    x = 11,294,733,401.98/107,627.15
  6. Step 6: Final answer
    x = 104,943.17

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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.