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Finding the Fourth Proportional to 250,603.34, 376,225.76 and 215,290.58

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Solution

The fourth proportional to 250,603.34, 376,225.76 and 215,290.58 is: 323,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,603.34 : 376,225.76 = 215,290.58 : x
  2. Step 2: Convert to fraction form
    250,603.34/376,225.76 = 215,290.58/x
  3. Step 3: Cross multiply
    250,603.34x = 376,225.76 × 215,290.58
  4. Step 4: Simplify right side
    250,603.34x = 80,997,862,081.34
  5. Step 5: Solve for x
    x = 80,997,862,081.34/250,603.34
  6. Step 6: Final answer
    x = 323,211.42

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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.