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Finding the Fourth Proportional to 312,015.51, 468,081.72 and 125,041.59

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Solution

The fourth proportional to 312,015.51, 468,081.72 and 125,041.59 is: 187,585.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,015.51 : 468,081.72 = 125,041.59 : x
  2. Step 2: Convert to fraction form
    312,015.51/468,081.72 = 125,041.59/x
  3. Step 3: Cross multiply
    312,015.51x = 468,081.72 × 125,041.59
  4. Step 4: Simplify right side
    312,015.51x = 58,529,682,518.73
  5. Step 5: Solve for x
    x = 58,529,682,518.73/312,015.51
  6. Step 6: Final answer
    x = 187,585.81

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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.