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Finding the Fourth Proportional to 74,122.56, 110,966.96 and 45,957.64

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Solution

The fourth proportional to 74,122.56, 110,966.96 and 45,957.64 is: 68,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,122.56 : 110,966.96 = 45,957.64 : x
  2. Step 2: Convert to fraction form
    74,122.56/110,966.96 = 45,957.64/x
  3. Step 3: Cross multiply
    74,122.56x = 110,966.96 × 45,957.64
  4. Step 4: Simplify right side
    74,122.56x = 5,099,779,599.57
  5. Step 5: Solve for x
    x = 5,099,779,599.57/74,122.56
  6. Step 6: Final answer
    x = 68,801.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.