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Finding the Fourth Proportional to 141,466.63, 195,225.58 and 77,805.49

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Solution

The fourth proportional to 141,466.63, 195,225.58 and 77,805.49 is: 107,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,466.63 : 195,225.58 = 77,805.49 : x
  2. Step 2: Convert to fraction form
    141,466.63/195,225.58 = 77,805.49/x
  3. Step 3: Cross multiply
    141,466.63x = 195,225.58 × 77,805.49
  4. Step 4: Simplify right side
    141,466.63x = 15,189,621,912.43
  5. Step 5: Solve for x
    x = 15,189,621,912.43/141,466.63
  6. Step 6: Final answer
    x = 107,372.47

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1.5x scale

Why These Related Problems?

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