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Finding the Fourth Proportional to 141,892.84, 212,695.53 and 92,004.58

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Solution

The fourth proportional to 141,892.84, 212,695.53 and 92,004.58 is: 137,913.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,892.84 : 212,695.53 = 92,004.58 : x
  2. Step 2: Convert to fraction form
    141,892.84/212,695.53 = 92,004.58/x
  3. Step 3: Cross multiply
    141,892.84x = 212,695.53 × 92,004.58
  4. Step 4: Simplify right side
    141,892.84x = 19,568,962,905.53
  5. Step 5: Solve for x
    x = 19,568,962,905.53/141,892.84
  6. Step 6: Final answer
    x = 137,913.67

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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.