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Finding the Fourth Proportional to 85,338.51, 127,952.82 and 35,453.04

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Solution

The fourth proportional to 85,338.51, 127,952.82 and 35,453.04 is: 53,156.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,338.51 : 127,952.82 = 35,453.04 : x
  2. Step 2: Convert to fraction form
    85,338.51/127,952.82 = 35,453.04/x
  3. Step 3: Cross multiply
    85,338.51x = 127,952.82 × 35,453.04
  4. Step 4: Simplify right side
    85,338.51x = 4,536,316,445.57
  5. Step 5: Solve for x
    x = 4,536,316,445.57/85,338.51
  6. Step 6: Final answer
    x = 53,156.73

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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.