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Finding the Fourth Proportional to 76,191.95, 105,144.60 and 43,926.35

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Solution

The fourth proportional to 76,191.95, 105,144.60 and 43,926.35 is: 60,618.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,191.95 : 105,144.60 = 43,926.35 : x
  2. Step 2: Convert to fraction form
    76,191.95/105,144.60 = 43,926.35/x
  3. Step 3: Cross multiply
    76,191.95x = 105,144.60 × 43,926.35
  4. Step 4: Simplify right side
    76,191.95x = 4,618,617,974.49
  5. Step 5: Solve for x
    x = 4,618,617,974.49/76,191.95
  6. Step 6: Final answer
    x = 60,618.19

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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.