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Finding the Fourth Proportional to 70,893.22, 97,831.58 and 40,677.88

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Solution

The fourth proportional to 70,893.22, 97,831.58 and 40,677.88 is: 56,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.22 : 97,831.58 = 40,677.88 : x
  2. Step 2: Convert to fraction form
    70,893.22/97,831.58 = 40,677.88/x
  3. Step 3: Cross multiply
    70,893.22x = 97,831.58 × 40,677.88
  4. Step 4: Simplify right side
    70,893.22x = 3,979,581,271.45
  5. Step 5: Solve for x
    x = 3,979,581,271.45/70,893.22
  6. Step 6: Final answer
    x = 56,134.86

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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.