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Finding the Fourth Proportional to 134,754.80, 202,298.60 and 84,834.80

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Solution

The fourth proportional to 134,754.80, 202,298.60 and 84,834.80 is: 127,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,754.80 : 202,298.60 = 84,834.80 : x
  2. Step 2: Convert to fraction form
    134,754.80/202,298.60 = 84,834.80/x
  3. Step 3: Cross multiply
    134,754.80x = 202,298.60 × 84,834.80
  4. Step 4: Simplify right side
    134,754.80x = 17,161,961,271.28
  5. Step 5: Solve for x
    x = 17,161,961,271.28/134,754.80
  6. Step 6: Final answer
    x = 127,356.96

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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.