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Finding the Fourth Proportional to 201,348.90, 301,764.15 and 154,368.90

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Solution

The fourth proportional to 201,348.90, 301,764.15 and 154,368.90 is: 231,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,348.90 : 301,764.15 = 154,368.90 : x
  2. Step 2: Convert to fraction form
    201,348.90/301,764.15 = 154,368.90/x
  3. Step 3: Cross multiply
    201,348.90x = 301,764.15 × 154,368.90
  4. Step 4: Simplify right side
    201,348.90x = 46,582,999,894.94
  5. Step 5: Solve for x
    x = 46,582,999,894.94/201,348.90
  6. Step 6: Final answer
    x = 231,354.63

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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.