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Finding the Fourth Proportional to 70,881.70, 97,816.76 and 39,050.59

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Solution

The fourth proportional to 70,881.70, 97,816.76 and 39,050.59 is: 53,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.70 : 97,816.76 = 39,050.59 : x
  2. Step 2: Convert to fraction form
    70,881.70/97,816.76 = 39,050.59/x
  3. Step 3: Cross multiply
    70,881.70x = 97,816.76 × 39,050.59
  4. Step 4: Simplify right side
    70,881.70x = 3,819,802,712.26
  5. Step 5: Solve for x
    x = 3,819,802,712.26/70,881.70
  6. Step 6: Final answer
    x = 53,889.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.