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Finding the Fourth Proportional to 458,353.67, 687,577.49 and 158,834.03

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Solution

The fourth proportional to 458,353.67, 687,577.49 and 158,834.03 is: 238,267.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,353.67 : 687,577.49 = 158,834.03 : x
  2. Step 2: Convert to fraction form
    458,353.67/687,577.49 = 158,834.03/x
  3. Step 3: Cross multiply
    458,353.67x = 687,577.49 × 158,834.03
  4. Step 4: Simplify right side
    458,353.67x = 109,210,702,879.82
  5. Step 5: Solve for x
    x = 109,210,702,879.82/458,353.67
  6. Step 6: Final answer
    x = 238,267.33

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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.