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Finding the Fourth Proportional to 201,139.76, 301,973.33 and 134,876.39

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Solution

The fourth proportional to 201,139.76, 301,973.33 and 134,876.39 is: 202,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,139.76 : 301,973.33 = 134,876.39 : x
  2. Step 2: Convert to fraction form
    201,139.76/301,973.33 = 134,876.39/x
  3. Step 3: Cross multiply
    201,139.76x = 301,973.33 × 134,876.39
  4. Step 4: Simplify right side
    201,139.76x = 40,729,071,454.00
  5. Step 5: Solve for x
    x = 40,729,071,454.00/201,139.76
  6. Step 6: Final answer
    x = 202,491.40

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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.