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Finding the Fourth Proportional to 134,159.40, 201,263.40 and 67,431.60

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Solution

The fourth proportional to 134,159.40, 201,263.40 and 67,431.60 is: 101,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,159.40 : 201,263.40 = 67,431.60 : x
  2. Step 2: Convert to fraction form
    134,159.40/201,263.40 = 67,431.60/x
  3. Step 3: Cross multiply
    134,159.40x = 201,263.40 × 67,431.60
  4. Step 4: Simplify right side
    134,159.40x = 13,571,513,083.44
  5. Step 5: Solve for x
    x = 13,571,513,083.44/134,159.40
  6. Step 6: Final answer
    x = 101,159.61

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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.