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Finding the Fourth Proportional to 70,346.64, 97,090.74 and 68,011.14

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Solution

The fourth proportional to 70,346.64, 97,090.74 and 68,011.14 is: 93,867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,346.64 : 97,090.74 = 68,011.14 : x
  2. Step 2: Convert to fraction form
    70,346.64/97,090.74 = 68,011.14/x
  3. Step 3: Cross multiply
    70,346.64x = 97,090.74 × 68,011.14
  4. Step 4: Simplify right side
    70,346.64x = 6,603,251,910.84
  5. Step 5: Solve for x
    x = 6,603,251,910.84/70,346.64
  6. Step 6: Final answer
    x = 93,867.34

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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.