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Finding the Fourth Proportional to 125,598.40, 189,235.34 and 113,604.42

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Solution

The fourth proportional to 125,598.40, 189,235.34 and 113,604.42 is: 171,164.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,598.40 : 189,235.34 = 113,604.42 : x
  2. Step 2: Convert to fraction form
    125,598.40/189,235.34 = 113,604.42/x
  3. Step 3: Cross multiply
    125,598.40x = 189,235.34 × 113,604.42
  4. Step 4: Simplify right side
    125,598.40x = 21,497,971,611.83
  5. Step 5: Solve for x
    x = 21,497,971,611.83/125,598.40
  6. Step 6: Final answer
    x = 171,164.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.