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Finding the Fourth Proportional to 245,447.12, 367,725.72 and 112,438.64

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Solution

The fourth proportional to 245,447.12, 367,725.72 and 112,438.64 is: 168,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,447.12 : 367,725.72 = 112,438.64 : x
  2. Step 2: Convert to fraction form
    245,447.12/367,725.72 = 112,438.64/x
  3. Step 3: Cross multiply
    245,447.12x = 367,725.72 × 112,438.64
  4. Step 4: Simplify right side
    245,447.12x = 41,346,579,849.82
  5. Step 5: Solve for x
    x = 41,346,579,849.82/245,447.12
  6. Step 6: Final answer
    x = 168,454.13

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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.