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Finding the Fourth Proportional to 117,649.96, 162,330.72 and 66,658.24

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Solution

The fourth proportional to 117,649.96, 162,330.72 and 66,658.24 is: 91,973.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,649.96 : 162,330.72 = 66,658.24 : x
  2. Step 2: Convert to fraction form
    117,649.96/162,330.72 = 66,658.24/x
  3. Step 3: Cross multiply
    117,649.96x = 162,330.72 × 66,658.24
  4. Step 4: Simplify right side
    117,649.96x = 10,820,680,093.13
  5. Step 5: Solve for x
    x = 10,820,680,093.13/117,649.96
  6. Step 6: Final answer
    x = 91,973.51

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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.