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Finding the Fourth Proportional to 134,714.60, 202,290.60 and 90,537.20

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Solution

The fourth proportional to 134,714.60, 202,290.60 and 90,537.20 is: 135,952.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,714.60 : 202,290.60 = 90,537.20 : x
  2. Step 2: Convert to fraction form
    134,714.60/202,290.60 = 90,537.20/x
  3. Step 3: Cross multiply
    134,714.60x = 202,290.60 × 90,537.20
  4. Step 4: Simplify right side
    134,714.60x = 18,314,824,510.32
  5. Step 5: Solve for x
    x = 18,314,824,510.32/134,714.60
  6. Step 6: Final answer
    x = 135,952.78

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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.