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Finding the Fourth Proportional to 117,597.64, 162,297.98 and 66,613.84

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Solution

The fourth proportional to 117,597.64, 162,297.98 and 66,613.84 is: 91,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,597.64 : 162,297.98 = 66,613.84 : x
  2. Step 2: Convert to fraction form
    117,597.64/162,297.98 = 66,613.84/x
  3. Step 3: Cross multiply
    117,597.64x = 162,297.98 × 66,613.84
  4. Step 4: Simplify right side
    117,597.64x = 10,811,291,672.04
  5. Step 5: Solve for x
    x = 10,811,291,672.04/117,597.64
  6. Step 6: Final answer
    x = 91,934.60

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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.