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Finding the Fourth Proportional to 84,704.82, 127,053.59 and 28,541.22

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Solution

The fourth proportional to 84,704.82, 127,053.59 and 28,541.22 is: 42,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,704.82 : 127,053.59 = 28,541.22 : x
  2. Step 2: Convert to fraction form
    84,704.82/127,053.59 = 28,541.22/x
  3. Step 3: Cross multiply
    84,704.82x = 127,053.59 × 28,541.22
  4. Step 4: Simplify right side
    84,704.82x = 3,626,264,463.98
  5. Step 5: Solve for x
    x = 3,626,264,463.98/84,704.82
  6. Step 6: Final answer
    x = 42,810.60

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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.