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Finding the Fourth Proportional to 134,464.40, 201,696.60 and 87,462.80

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Solution

The fourth proportional to 134,464.40, 201,696.60 and 87,462.80 is: 131,194.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,464.40 : 201,696.60 = 87,462.80 : x
  2. Step 2: Convert to fraction form
    134,464.40/201,696.60 = 87,462.80/x
  3. Step 3: Cross multiply
    134,464.40x = 201,696.60 × 87,462.80
  4. Step 4: Simplify right side
    134,464.40x = 17,640,949,386.48
  5. Step 5: Solve for x
    x = 17,640,949,386.48/134,464.40
  6. Step 6: Final answer
    x = 131,194.20

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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.