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Finding the Fourth Proportional to 245,603.31, 367,966.70 and 133,211.86

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Solution

The fourth proportional to 245,603.31, 367,966.70 and 133,211.86 is: 199,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,603.31 : 367,966.70 = 133,211.86 : x
  2. Step 2: Convert to fraction form
    245,603.31/367,966.70 = 133,211.86/x
  3. Step 3: Cross multiply
    245,603.31x = 367,966.70 × 133,211.86
  4. Step 4: Simplify right side
    245,603.31x = 49,017,527,438.63
  5. Step 5: Solve for x
    x = 49,017,527,438.63/245,603.31
  6. Step 6: Final answer
    x = 199,580.08

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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.