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Finding the Fourth Proportional to 117,624.20, 176,436.30 and 65,136.20

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Solution

The fourth proportional to 117,624.20, 176,436.30 and 65,136.20 is: 97,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,624.20 : 176,436.30 = 65,136.20 : x
  2. Step 2: Convert to fraction form
    117,624.20/176,436.30 = 65,136.20/x
  3. Step 3: Cross multiply
    117,624.20x = 176,436.30 × 65,136.20
  4. Step 4: Simplify right side
    117,624.20x = 11,492,390,124.06
  5. Step 5: Solve for x
    x = 11,492,390,124.06/117,624.20
  6. Step 6: Final answer
    x = 97,704.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.