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Finding the Fourth Proportional to 368,950.42, 553,370.54 and 102,683.18

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Solution

The fourth proportional to 368,950.42, 553,370.54 and 102,683.18 is: 154,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,950.42 : 553,370.54 = 102,683.18 : x
  2. Step 2: Convert to fraction form
    368,950.42/553,370.54 = 102,683.18/x
  3. Step 3: Cross multiply
    368,950.42x = 553,370.54 × 102,683.18
  4. Step 4: Simplify right side
    368,950.42x = 56,821,846,765.52
  5. Step 5: Solve for x
    x = 56,821,846,765.52/368,950.42
  6. Step 6: Final answer
    x = 154,009.44

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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.