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Finding the Fourth Proportional to 70,370.28, 105,556.34 and 22,985.01

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Solution

The fourth proportional to 70,370.28, 105,556.34 and 22,985.01 is: 34,477.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,370.28 : 105,556.34 = 22,985.01 : x
  2. Step 2: Convert to fraction form
    70,370.28/105,556.34 = 22,985.01/x
  3. Step 3: Cross multiply
    70,370.28x = 105,556.34 × 22,985.01
  4. Step 4: Simplify right side
    70,370.28x = 2,426,213,415.54
  5. Step 5: Solve for x
    x = 2,426,213,415.54/70,370.28
  6. Step 6: Final answer
    x = 34,477.81

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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.