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Finding the Fourth Proportional to 368,124.64, 552,104.88 and 143,491.12

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Solution

The fourth proportional to 368,124.64, 552,104.88 and 143,491.12 is: 215,204.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,124.64 : 552,104.88 = 143,491.12 : x
  2. Step 2: Convert to fraction form
    368,124.64/552,104.88 = 143,491.12/x
  3. Step 3: Cross multiply
    368,124.64x = 552,104.88 × 143,491.12
  4. Step 4: Simplify right side
    368,124.64x = 79,222,147,588.67
  5. Step 5: Solve for x
    x = 79,222,147,588.67/368,124.64
  6. Step 6: Final answer
    x = 215,204.69

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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.