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Finding the Fourth Proportional to 94,144.21, 129,919.71 and 53,855.48

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Solution

The fourth proportional to 94,144.21, 129,919.71 and 53,855.48 is: 74,320.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,144.21 : 129,919.71 = 53,855.48 : x
  2. Step 2: Convert to fraction form
    94,144.21/129,919.71 = 53,855.48/x
  3. Step 3: Cross multiply
    94,144.21x = 129,919.71 × 53,855.48
  4. Step 4: Simplify right side
    94,144.21x = 6,996,888,870.27
  5. Step 5: Solve for x
    x = 6,996,888,870.27/94,144.21
  6. Step 6: Final answer
    x = 74,320.97

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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.