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Finding the Fourth Proportional to 370,813.50, 555,890.38 and 134,103.56

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Solution

The fourth proportional to 370,813.50, 555,890.38 and 134,103.56 is: 201,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,813.50 : 555,890.38 = 134,103.56 : x
  2. Step 2: Convert to fraction form
    370,813.50/555,890.38 = 134,103.56/x
  3. Step 3: Cross multiply
    370,813.50x = 555,890.38 × 134,103.56
  4. Step 4: Simplify right side
    370,813.50x = 74,546,875,813.04
  5. Step 5: Solve for x
    x = 74,546,875,813.04/370,813.50
  6. Step 6: Final answer
    x = 201,036.04

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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.