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Finding the Fourth Proportional to 84,675.53, 126,764.16 and 56,525.78

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Solution

The fourth proportional to 84,675.53, 126,764.16 and 56,525.78 is: 84,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,675.53 : 126,764.16 = 56,525.78 : x
  2. Step 2: Convert to fraction form
    84,675.53/126,764.16 = 56,525.78/x
  3. Step 3: Cross multiply
    84,675.53x = 126,764.16 × 56,525.78
  4. Step 4: Simplify right side
    84,675.53x = 7,165,442,386.22
  5. Step 5: Solve for x
    x = 7,165,442,386.22/84,675.53
  6. Step 6: Final answer
    x = 84,622.36

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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.