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Finding the Fourth Proportional to 118,515.51, 163,566.80 and 67,546.46

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Solution

The fourth proportional to 118,515.51, 163,566.80 and 67,546.46 is: 93,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.51 : 163,566.80 = 67,546.46 : x
  2. Step 2: Convert to fraction form
    118,515.51/163,566.80 = 67,546.46/x
  3. Step 3: Cross multiply
    118,515.51x = 163,566.80 × 67,546.46
  4. Step 4: Simplify right side
    118,515.51x = 11,048,357,157.96
  5. Step 5: Solve for x
    x = 11,048,357,157.96/118,515.51
  6. Step 6: Final answer
    x = 93,222.88

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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.