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Finding the Fourth Proportional to 201,421.10, 301,767.15 and 96,007.70

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Solution

The fourth proportional to 201,421.10, 301,767.15 and 96,007.70 is: 143,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,421.10 : 301,767.15 = 96,007.70 : x
  2. Step 2: Convert to fraction form
    201,421.10/301,767.15 = 96,007.70/x
  3. Step 3: Cross multiply
    201,421.10x = 301,767.15 × 96,007.70
  4. Step 4: Simplify right side
    201,421.10x = 28,971,970,007.06
  5. Step 5: Solve for x
    x = 28,971,970,007.06/201,421.10
  6. Step 6: Final answer
    x = 143,837.81

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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.