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Finding the Fourth Proportional to 245,487.32, 368,215.68 and 117,494.51

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Solution

The fourth proportional to 245,487.32, 368,215.68 and 117,494.51 is: 176,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,487.32 : 368,215.68 = 117,494.51 : x
  2. Step 2: Convert to fraction form
    245,487.32/368,215.68 = 117,494.51/x
  3. Step 3: Cross multiply
    245,487.32x = 368,215.68 × 117,494.51
  4. Step 4: Simplify right side
    245,487.32x = 43,263,320,876.25
  5. Step 5: Solve for x
    x = 43,263,320,876.25/245,487.32
  6. Step 6: Final answer
    x = 176,234.44

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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.