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Finding the Fourth Proportional to 117,383.40, 175,764.06 and 70,571.88

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Solution

The fourth proportional to 117,383.40, 175,764.06 and 70,571.88 is: 105,670.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,383.40 : 175,764.06 = 70,571.88 : x
  2. Step 2: Convert to fraction form
    117,383.40/175,764.06 = 70,571.88/x
  3. Step 3: Cross multiply
    117,383.40x = 175,764.06 × 70,571.88
  4. Step 4: Simplify right side
    117,383.40x = 12,404,000,150.63
  5. Step 5: Solve for x
    x = 12,404,000,150.63/117,383.40
  6. Step 6: Final answer
    x = 105,670.82

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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.