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Finding the Fourth Proportional to 267,165.56, 368,722.60 and 153,989.12

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Solution

The fourth proportional to 267,165.56, 368,722.60 and 153,989.12 is: 212,524.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,165.56 : 368,722.60 = 153,989.12 : x
  2. Step 2: Convert to fraction form
    267,165.56/368,722.60 = 153,989.12/x
  3. Step 3: Cross multiply
    267,165.56x = 368,722.60 × 153,989.12
  4. Step 4: Simplify right side
    267,165.56x = 56,779,268,698.11
  5. Step 5: Solve for x
    x = 56,779,268,698.11/267,165.56
  6. Step 6: Final answer
    x = 212,524.66

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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.