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Finding the Fourth Proportional to 134,892.80, 202,339.20 and 64,755.20

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Solution

The fourth proportional to 134,892.80, 202,339.20 and 64,755.20 is: 97,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,892.80 : 202,339.20 = 64,755.20 : x
  2. Step 2: Convert to fraction form
    134,892.80/202,339.20 = 64,755.20/x
  3. Step 3: Cross multiply
    134,892.80x = 202,339.20 × 64,755.20
  4. Step 4: Simplify right side
    134,892.80x = 13,102,515,363.84
  5. Step 5: Solve for x
    x = 13,102,515,363.84/134,892.80
  6. Step 6: Final answer
    x = 97,132.80

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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.