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Finding the Fourth Proportional to 245,767.82, 368,741.84 and 103,648.86

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Solution

The fourth proportional to 245,767.82, 368,741.84 and 103,648.86 is: 155,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,767.82 : 368,741.84 = 103,648.86 : x
  2. Step 2: Convert to fraction form
    245,767.82/368,741.84 = 103,648.86/x
  3. Step 3: Cross multiply
    245,767.82x = 368,741.84 × 103,648.86
  4. Step 4: Simplify right side
    245,767.82x = 38,219,670,832.06
  5. Step 5: Solve for x
    x = 38,219,670,832.06/245,767.82
  6. Step 6: Final answer
    x = 155,511.29

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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.