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Finding the Fourth Proportional to 212,866.40, 293,757.68 and 117,376.48

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Solution

The fourth proportional to 212,866.40, 293,757.68 and 117,376.48 is: 161,980.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,866.40 : 293,757.68 = 117,376.48 : x
  2. Step 2: Convert to fraction form
    212,866.40/293,757.68 = 117,376.48/x
  3. Step 3: Cross multiply
    212,866.40x = 293,757.68 × 117,376.48
  4. Step 4: Simplify right side
    212,866.40x = 34,480,242,451.37
  5. Step 5: Solve for x
    x = 34,480,242,451.37/212,866.40
  6. Step 6: Final answer
    x = 161,980.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.