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Finding the Fourth Proportional to 453,118.37, 679,633.59 and 137,578.01

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Solution

The fourth proportional to 453,118.37, 679,633.59 and 137,578.01 is: 206,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,118.37 : 679,633.59 = 137,578.01 : x
  2. Step 2: Convert to fraction form
    453,118.37/679,633.59 = 137,578.01/x
  3. Step 3: Cross multiply
    453,118.37x = 679,633.59 × 137,578.01
  4. Step 4: Simplify right side
    453,118.37x = 93,502,636,841.36
  5. Step 5: Solve for x
    x = 93,502,636,841.36/453,118.37
  6. Step 6: Final answer
    x = 206,353.67

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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.