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Finding the Fourth Proportional to 117,381.86, 175,679.12 and 96,321.05

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Solution

The fourth proportional to 117,381.86, 175,679.12 and 96,321.05 is: 144,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,381.86 : 175,679.12 = 96,321.05 : x
  2. Step 2: Convert to fraction form
    117,381.86/175,679.12 = 96,321.05/x
  3. Step 3: Cross multiply
    117,381.86x = 175,679.12 × 96,321.05
  4. Step 4: Simplify right side
    117,381.86x = 16,921,595,941.48
  5. Step 5: Solve for x
    x = 16,921,595,941.48/117,381.86
  6. Step 6: Final answer
    x = 144,158.53

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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.