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Finding the Fourth Proportional to 245,767.77, 368,651.50 and 140,512.93

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Solution

The fourth proportional to 245,767.77, 368,651.50 and 140,512.93 is: 210,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,767.77 : 368,651.50 = 140,512.93 : x
  2. Step 2: Convert to fraction form
    245,767.77/368,651.50 = 140,512.93/x
  3. Step 3: Cross multiply
    245,767.77x = 368,651.50 × 140,512.93
  4. Step 4: Simplify right side
    245,767.77x = 51,800,301,931.37
  5. Step 5: Solve for x
    x = 51,800,301,931.37/245,767.77
  6. Step 6: Final answer
    x = 210,769.30

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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.