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Finding the Fourth Proportional to 125,971.62, 188,967.40 and 41,728.38

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Solution

The fourth proportional to 125,971.62, 188,967.40 and 41,728.38 is: 62,595.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,971.62 : 188,967.40 = 41,728.38 : x
  2. Step 2: Convert to fraction form
    125,971.62/188,967.40 = 41,728.38/x
  3. Step 3: Cross multiply
    125,971.62x = 188,967.40 × 41,728.38
  4. Step 4: Simplify right side
    125,971.62x = 7,885,303,474.81
  5. Step 5: Solve for x
    x = 7,885,303,474.81/125,971.62
  6. Step 6: Final answer
    x = 62,595.87

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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.