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Finding the Fourth Proportional to 268,967.50, 403,700.55 and 135,941.38

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Solution

The fourth proportional to 268,967.50, 403,700.55 and 135,941.38 is: 204,038.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,967.50 : 403,700.55 = 135,941.38 : x
  2. Step 2: Convert to fraction form
    268,967.50/403,700.55 = 135,941.38/x
  3. Step 3: Cross multiply
    268,967.50x = 403,700.55 × 135,941.38
  4. Step 4: Simplify right side
    268,967.50x = 54,879,609,873.76
  5. Step 5: Solve for x
    x = 54,879,609,873.76/268,967.50
  6. Step 6: Final answer
    x = 204,038.07

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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.