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Finding the Fourth Proportional to 116,431.50, 160,675.47 and 63,439.50

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Solution

The fourth proportional to 116,431.50, 160,675.47 and 63,439.50 is: 87,546.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,431.50 : 160,675.47 = 63,439.50 : x
  2. Step 2: Convert to fraction form
    116,431.50/160,675.47 = 63,439.50/x
  3. Step 3: Cross multiply
    116,431.50x = 160,675.47 × 63,439.50
  4. Step 4: Simplify right side
    116,431.50x = 10,193,171,479.07
  5. Step 5: Solve for x
    x = 10,193,171,479.07/116,431.50
  6. Step 6: Final answer
    x = 87,546.51

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1.5x scale

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.