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Finding the Fourth Proportional to 248,364.36, 342,790.06 and 140,944.40

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Solution

The fourth proportional to 248,364.36, 342,790.06 and 140,944.40 is: 194,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,364.36 : 342,790.06 = 140,944.40 : x
  2. Step 2: Convert to fraction form
    248,364.36/342,790.06 = 140,944.40/x
  3. Step 3: Cross multiply
    248,364.36x = 342,790.06 × 140,944.40
  4. Step 4: Simplify right side
    248,364.36x = 48,314,339,332.66
  5. Step 5: Solve for x
    x = 48,314,339,332.66/248,364.36
  6. Step 6: Final answer
    x = 194,530.08

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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.