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Finding the Fourth Proportional to 189,040.86, 260,876.25 and 104,157.93

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Solution

The fourth proportional to 189,040.86, 260,876.25 and 104,157.93 is: 143,737.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,040.86 : 260,876.25 = 104,157.93 : x
  2. Step 2: Convert to fraction form
    189,040.86/260,876.25 = 104,157.93/x
  3. Step 3: Cross multiply
    189,040.86x = 260,876.25 × 104,157.93
  4. Step 4: Simplify right side
    189,040.86x = 27,172,330,186.16
  5. Step 5: Solve for x
    x = 27,172,330,186.16/189,040.86
  6. Step 6: Final answer
    x = 143,737.87

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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.