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Finding the Fourth Proportional to 117,670.66, 176,515.10 and 70,606.42

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Solution

The fourth proportional to 117,670.66, 176,515.10 and 70,606.42 is: 105,915.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,670.66 : 176,515.10 = 70,606.42 : x
  2. Step 2: Convert to fraction form
    117,670.66/176,515.10 = 70,606.42/x
  3. Step 3: Cross multiply
    117,670.66x = 176,515.10 × 70,606.42
  4. Step 4: Simplify right side
    117,670.66x = 12,463,098,757.40
  5. Step 5: Solve for x
    x = 12,463,098,757.40/117,670.66
  6. Step 6: Final answer
    x = 105,915.09

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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.