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Finding the Fourth Proportional to 117,492.54, 176,232.60 and 72,522.42

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Solution

The fourth proportional to 117,492.54, 176,232.60 and 72,522.42 is: 108,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,492.54 : 176,232.60 = 72,522.42 : x
  2. Step 2: Convert to fraction form
    117,492.54/176,232.60 = 72,522.42/x
  3. Step 3: Cross multiply
    117,492.54x = 176,232.60 × 72,522.42
  4. Step 4: Simplify right side
    117,492.54x = 12,780,814,634.89
  5. Step 5: Solve for x
    x = 12,780,814,634.89/117,492.54
  6. Step 6: Final answer
    x = 108,779.80

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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.