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Finding the Fourth Proportional to 66,695.60, 92,052.24 and 42,852.08

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Solution

The fourth proportional to 66,695.60, 92,052.24 and 42,852.08 is: 59,143.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.60 : 92,052.24 = 42,852.08 : x
  2. Step 2: Convert to fraction form
    66,695.60/92,052.24 = 42,852.08/x
  3. Step 3: Cross multiply
    66,695.60x = 92,052.24 × 42,852.08
  4. Step 4: Simplify right side
    66,695.60x = 3,944,629,952.66
  5. Step 5: Solve for x
    x = 3,944,629,952.66/66,695.60
  6. Step 6: Final answer
    x = 59,143.78

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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.