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Finding the Fourth Proportional to 368,991.84, 553,536 and 132,360.96

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Solution

The fourth proportional to 368,991.84, 553,536 and 132,360.96 is: 198,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,991.84 : 553,536 = 132,360.96 : x
  2. Step 2: Convert to fraction form
    368,991.84/553,536 = 132,360.96/x
  3. Step 3: Cross multiply
    368,991.84x = 553,536 × 132,360.96
  4. Step 4: Simplify right side
    368,991.84x = 73,266,556,354.56
  5. Step 5: Solve for x
    x = 73,266,556,354.56/368,991.84
  6. Step 6: Final answer
    x = 198,558.74

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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.