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Finding the Fourth Proportional to 202,408.61, 279,348.48 and 117,525.67

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Solution

The fourth proportional to 202,408.61, 279,348.48 and 117,525.67 is: 162,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,408.61 : 279,348.48 = 117,525.67 : x
  2. Step 2: Convert to fraction form
    202,408.61/279,348.48 = 117,525.67/x
  3. Step 3: Cross multiply
    202,408.61x = 279,348.48 × 117,525.67
  4. Step 4: Simplify right side
    202,408.61x = 32,830,617,275.48
  5. Step 5: Solve for x
    x = 32,830,617,275.48/202,408.61
  6. Step 6: Final answer
    x = 162,199.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.