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Finding the Fourth Proportional to 508,136.25, 762,255.42 and 134,159.25

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Solution

The fourth proportional to 508,136.25, 762,255.42 and 134,159.25 is: 201,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,136.25 : 762,255.42 = 134,159.25 : x
  2. Step 2: Convert to fraction form
    508,136.25/762,255.42 = 134,159.25/x
  3. Step 3: Cross multiply
    508,136.25x = 762,255.42 × 134,159.25
  4. Step 4: Simplify right side
    508,136.25x = 102,263,615,455.64
  5. Step 5: Solve for x
    x = 102,263,615,455.64/508,136.25
  6. Step 6: Final answer
    x = 201,252.35

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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.