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Finding the Fourth Proportional to 225,969.64, 338,956.40 and 57,490.12

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Solution

The fourth proportional to 225,969.64, 338,956.40 and 57,490.12 is: 86,235.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,969.64 : 338,956.40 = 57,490.12 : x
  2. Step 2: Convert to fraction form
    225,969.64/338,956.40 = 57,490.12/x
  3. Step 3: Cross multiply
    225,969.64x = 338,956.40 × 57,490.12
  4. Step 4: Simplify right side
    225,969.64x = 19,486,644,110.77
  5. Step 5: Solve for x
    x = 19,486,644,110.77/225,969.64
  6. Step 6: Final answer
    x = 86,235.67

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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.