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Finding the Fourth Proportional to 66,133.61, 91,265.04 and 35,919.52

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Solution

The fourth proportional to 66,133.61, 91,265.04 and 35,919.52 is: 49,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.61 : 91,265.04 = 35,919.52 : x
  2. Step 2: Convert to fraction form
    66,133.61/91,265.04 = 35,919.52/x
  3. Step 3: Cross multiply
    66,133.61x = 91,265.04 × 35,919.52
  4. Step 4: Simplify right side
    66,133.61x = 3,278,196,429.58
  5. Step 5: Solve for x
    x = 3,278,196,429.58/66,133.61
  6. Step 6: Final answer
    x = 49,569.30

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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.