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Finding the Fourth Proportional to 104,771.85, 144,484.65 and 70,394.33

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Solution

The fourth proportional to 104,771.85, 144,484.65 and 70,394.33 is: 97,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,771.85 : 144,484.65 = 70,394.33 : x
  2. Step 2: Convert to fraction form
    104,771.85/144,484.65 = 70,394.33/x
  3. Step 3: Cross multiply
    104,771.85x = 144,484.65 × 70,394.33
  4. Step 4: Simplify right side
    104,771.85x = 10,170,899,409.61
  5. Step 5: Solve for x
    x = 10,170,899,409.61/104,771.85
  6. Step 6: Final answer
    x = 97,076.64

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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.