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Finding the Fourth Proportional to 368,653.54, 553,019.79 and 102,414.82

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Solution

The fourth proportional to 368,653.54, 553,019.79 and 102,414.82 is: 153,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,653.54 : 553,019.79 = 102,414.82 : x
  2. Step 2: Convert to fraction form
    368,653.54/553,019.79 = 102,414.82/x
  3. Step 3: Cross multiply
    368,653.54x = 553,019.79 × 102,414.82
  4. Step 4: Simplify right side
    368,653.54x = 56,637,422,249.29
  5. Step 5: Solve for x
    x = 56,637,422,249.29/368,653.54
  6. Step 6: Final answer
    x = 153,633.20

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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.