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Finding the Fourth Proportional to 368,340.52, 552,385.18 and 143,683.24

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Solution

The fourth proportional to 368,340.52, 552,385.18 and 143,683.24 is: 215,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,340.52 : 552,385.18 = 143,683.24 : x
  2. Step 2: Convert to fraction form
    368,340.52/552,385.18 = 143,683.24/x
  3. Step 3: Cross multiply
    368,340.52x = 552,385.18 × 143,683.24
  4. Step 4: Simplify right side
    368,340.52x = 79,368,492,390.38
  5. Step 5: Solve for x
    x = 79,368,492,390.38/368,340.52
  6. Step 6: Final answer
    x = 215,475.87

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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.