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Finding the Fourth Proportional to 368,118.30, 551,853.45 and 249,404.70

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Solution

The fourth proportional to 368,118.30, 551,853.45 and 249,404.70 is: 373,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,118.30 : 551,853.45 = 249,404.70 : x
  2. Step 2: Convert to fraction form
    368,118.30/551,853.45 = 249,404.70/x
  3. Step 3: Cross multiply
    368,118.30x = 551,853.45 × 249,404.70
  4. Step 4: Simplify right side
    368,118.30x = 137,634,844,141.22
  5. Step 5: Solve for x
    x = 137,634,844,141.22/368,118.30
  6. Step 6: Final answer
    x = 373,887.54

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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.