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Finding the Fourth Proportional to 94,207.20, 141,541.20 and 70,879.20

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Solution

The fourth proportional to 94,207.20, 141,541.20 and 70,879.20 is: 106,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,207.20 : 141,541.20 = 70,879.20 : x
  2. Step 2: Convert to fraction form
    94,207.20/141,541.20 = 70,879.20/x
  3. Step 3: Cross multiply
    94,207.20x = 141,541.20 × 70,879.20
  4. Step 4: Simplify right side
    94,207.20x = 10,032,327,023.04
  5. Step 5: Solve for x
    x = 10,032,327,023.04/94,207.20
  6. Step 6: Final answer
    x = 106,492.15

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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.