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Finding the Fourth Proportional to 66,322, 91,602.12 and 43,927.12

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Solution

The fourth proportional to 66,322, 91,602.12 and 43,927.12 is: 60,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,322 : 91,602.12 = 43,927.12 : x
  2. Step 2: Convert to fraction form
    66,322/91,602.12 = 43,927.12/x
  3. Step 3: Cross multiply
    66,322x = 91,602.12 × 43,927.12
  4. Step 4: Simplify right side
    66,322x = 4,023,817,317.49
  5. Step 5: Solve for x
    x = 4,023,817,317.49/66,322
  6. Step 6: Final answer
    x = 60,670.93

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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.