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Finding the Fourth Proportional to 129,102.96, 193,579.95 and 50,124.93

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Solution

The fourth proportional to 129,102.96, 193,579.95 and 50,124.93 is: 75,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,102.96 : 193,579.95 = 50,124.93 : x
  2. Step 2: Convert to fraction form
    129,102.96/193,579.95 = 50,124.93/x
  3. Step 3: Cross multiply
    129,102.96x = 193,579.95 × 50,124.93
  4. Step 4: Simplify right side
    129,102.96x = 9,703,181,443.15
  5. Step 5: Solve for x
    x = 9,703,181,443.15/129,102.96
  6. Step 6: Final answer
    x = 75,158.47

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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.