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Finding the Fourth Proportional to 74,063.32, 102,203.46 and 40,522.84

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Solution

The fourth proportional to 74,063.32, 102,203.46 and 40,522.84 is: 55,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,063.32 : 102,203.46 = 40,522.84 : x
  2. Step 2: Convert to fraction form
    74,063.32/102,203.46 = 40,522.84/x
  3. Step 3: Cross multiply
    74,063.32x = 102,203.46 × 40,522.84
  4. Step 4: Simplify right side
    74,063.32x = 4,141,574,457.03
  5. Step 5: Solve for x
    x = 4,141,574,457.03/74,063.32
  6. Step 6: Final answer
    x = 55,919.37

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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.