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Finding the Fourth Proportional to 258,138.51, 356,282.15 and 164,944.67

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Solution

The fourth proportional to 258,138.51, 356,282.15 and 164,944.67 is: 227,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,138.51 : 356,282.15 = 164,944.67 : x
  2. Step 2: Convert to fraction form
    258,138.51/356,282.15 = 164,944.67/x
  3. Step 3: Cross multiply
    258,138.51x = 356,282.15 × 164,944.67
  4. Step 4: Simplify right side
    258,138.51x = 58,766,841,056.59
  5. Step 5: Solve for x
    x = 58,766,841,056.59/258,138.51
  6. Step 6: Final answer
    x = 227,656.23

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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.