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Finding the Fourth Proportional to 141,903.63, 212,894.33 and 74,440.22

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Solution

The fourth proportional to 141,903.63, 212,894.33 and 74,440.22 is: 111,680.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,903.63 : 212,894.33 = 74,440.22 : x
  2. Step 2: Convert to fraction form
    141,903.63/212,894.33 = 74,440.22/x
  3. Step 3: Cross multiply
    141,903.63x = 212,894.33 × 74,440.22
  4. Step 4: Simplify right side
    141,903.63x = 15,847,899,325.28
  5. Step 5: Solve for x
    x = 15,847,899,325.28/141,903.63
  6. Step 6: Final answer
    x = 111,680.72

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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.