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Finding the Fourth Proportional to 117,787.12, 176,682.12 and 65,299.12

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Solution

The fourth proportional to 117,787.12, 176,682.12 and 65,299.12 is: 97,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,787.12 : 176,682.12 = 65,299.12 : x
  2. Step 2: Convert to fraction form
    117,787.12/176,682.12 = 65,299.12/x
  3. Step 3: Cross multiply
    117,787.12x = 176,682.12 × 65,299.12
  4. Step 4: Simplify right side
    117,787.12x = 11,537,186,955.73
  5. Step 5: Solve for x
    x = 11,537,186,955.73/117,787.12
  6. Step 6: Final answer
    x = 97,949.48

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1.5x scale

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.