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Finding the Fourth Proportional to 74,056.76, 102,200.90 and 40,522.76

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Solution

The fourth proportional to 74,056.76, 102,200.90 and 40,522.76 is: 55,922.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,056.76 : 102,200.90 = 40,522.76 : x
  2. Step 2: Convert to fraction form
    74,056.76/102,200.90 = 40,522.76/x
  3. Step 3: Cross multiply
    74,056.76x = 102,200.90 × 40,522.76
  4. Step 4: Simplify right side
    74,056.76x = 4,141,462,542.48
  5. Step 5: Solve for x
    x = 4,141,462,542.48/74,056.76
  6. Step 6: Final answer
    x = 55,922.82

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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.