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Finding the Fourth Proportional to 117,449.58, 162,080.64 and 67,148.58

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Solution

The fourth proportional to 117,449.58, 162,080.64 and 67,148.58 is: 92,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,449.58 : 162,080.64 = 67,148.58 : x
  2. Step 2: Convert to fraction form
    117,449.58/162,080.64 = 67,148.58/x
  3. Step 3: Cross multiply
    117,449.58x = 162,080.64 × 67,148.58
  4. Step 4: Simplify right side
    117,449.58x = 10,883,484,821.49
  5. Step 5: Solve for x
    x = 10,883,484,821.49/117,449.58
  6. Step 6: Final answer
    x = 92,665.17

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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.