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Finding the Fourth Proportional to 74,073, 102,222.90 and 40,541.16

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Solution

The fourth proportional to 74,073, 102,222.90 and 40,541.16 is: 55,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,073 : 102,222.90 = 40,541.16 : x
  2. Step 2: Convert to fraction form
    74,073/102,222.90 = 40,541.16/x
  3. Step 3: Cross multiply
    74,073x = 102,222.90 × 40,541.16
  4. Step 4: Simplify right side
    74,073x = 4,144,234,944.56
  5. Step 5: Solve for x
    x = 4,144,234,944.56/74,073
  6. Step 6: Final answer
    x = 55,947.98

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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.