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Finding the Fourth Proportional to 482,045.55, 723,064.55 and 145,084.74

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Solution

The fourth proportional to 482,045.55, 723,064.55 and 145,084.74 is: 217,625.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,045.55 : 723,064.55 = 145,084.74 : x
  2. Step 2: Convert to fraction form
    482,045.55/723,064.55 = 145,084.74/x
  3. Step 3: Cross multiply
    482,045.55x = 723,064.55 × 145,084.74
  4. Step 4: Simplify right side
    482,045.55x = 104,905,631,514.54
  5. Step 5: Solve for x
    x = 104,905,631,514.54/482,045.55
  6. Step 6: Final answer
    x = 217,625.97

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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.