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Finding the Fourth Proportional to 70,400.56, 105,582.31 and 26,040.01

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Solution

The fourth proportional to 70,400.56, 105,582.31 and 26,040.01 is: 39,053.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,400.56 : 105,582.31 = 26,040.01 : x
  2. Step 2: Convert to fraction form
    70,400.56/105,582.31 = 26,040.01/x
  3. Step 3: Cross multiply
    70,400.56x = 105,582.31 × 26,040.01
  4. Step 4: Simplify right side
    70,400.56x = 2,749,364,408.22
  5. Step 5: Solve for x
    x = 2,749,364,408.22/70,400.56
  6. Step 6: Final answer
    x = 39,053.16

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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.