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Finding the Fourth Proportional to 74,598.59, 102,947.37 and 40,608.05

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Solution

The fourth proportional to 74,598.59, 102,947.37 and 40,608.05 is: 56,039.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,598.59 : 102,947.37 = 40,608.05 : x
  2. Step 2: Convert to fraction form
    74,598.59/102,947.37 = 40,608.05/x
  3. Step 3: Cross multiply
    74,598.59x = 102,947.37 × 40,608.05
  4. Step 4: Simplify right side
    74,598.59x = 4,180,492,205.70
  5. Step 5: Solve for x
    x = 4,180,492,205.70/74,598.59
  6. Step 6: Final answer
    x = 56,039.83

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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.