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Finding the Fourth Proportional to 117,906.57, 162,714.53 and 66,918.17

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Solution

The fourth proportional to 117,906.57, 162,714.53 and 66,918.17 is: 92,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,906.57 : 162,714.53 = 66,918.17 : x
  2. Step 2: Convert to fraction form
    117,906.57/162,714.53 = 66,918.17/x
  3. Step 3: Cross multiply
    117,906.57x = 162,714.53 × 66,918.17
  4. Step 4: Simplify right side
    117,906.57x = 10,888,559,154.09
  5. Step 5: Solve for x
    x = 10,888,559,154.09/117,906.57
  6. Step 6: Final answer
    x = 92,349.05

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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.