Home / 208,538.74-312,826.56-58,780.36

Finding the Fourth Proportional to 208,538.74, 312,826.56 and 58,780.36

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Solution

The fourth proportional to 208,538.74, 312,826.56 and 58,780.36 is: 88,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,538.74 : 312,826.56 = 58,780.36 : x
  2. Step 2: Convert to fraction form
    208,538.74/312,826.56 = 58,780.36/x
  3. Step 3: Cross multiply
    208,538.74x = 312,826.56 × 58,780.36
  4. Step 4: Simplify right side
    208,538.74x = 18,388,057,814.36
  5. Step 5: Solve for x
    x = 18,388,057,814.36/208,538.74
  6. Step 6: Final answer
    x = 88,175.74

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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.