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Finding the Fourth Proportional to 66,497.33, 91,799.77 and 42,322.62

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Solution

The fourth proportional to 66,497.33, 91,799.77 and 42,322.62 is: 58,426.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,497.33 : 91,799.77 = 42,322.62 : x
  2. Step 2: Convert to fraction form
    66,497.33/91,799.77 = 42,322.62/x
  3. Step 3: Cross multiply
    66,497.33x = 91,799.77 × 42,322.62
  4. Step 4: Simplify right side
    66,497.33x = 3,885,207,258.30
  5. Step 5: Solve for x
    x = 3,885,207,258.30/66,497.33
  6. Step 6: Final answer
    x = 58,426.52

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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.