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Finding the Fourth Proportional to 70,583.40, 97,408.98 and 40,370.00

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Solution

The fourth proportional to 70,583.40, 97,408.98 and 40,370.00 is: 55,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,583.40 : 97,408.98 = 40,370.00 : x
  2. Step 2: Convert to fraction form
    70,583.40/97,408.98 = 40,370.00/x
  3. Step 3: Cross multiply
    70,583.40x = 97,408.98 × 40,370.00
  4. Step 4: Simplify right side
    70,583.40x = 3,932,400,035.56
  5. Step 5: Solve for x
    x = 3,932,400,035.56/70,583.40
  6. Step 6: Final answer
    x = 55,712.82

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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.