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Finding the Fourth Proportional to 141,304.80, 211,957.21 and 66,369.98

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Solution

The fourth proportional to 141,304.80, 211,957.21 and 66,369.98 is: 99,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,304.80 : 211,957.21 = 66,369.98 : x
  2. Step 2: Convert to fraction form
    141,304.80/211,957.21 = 66,369.98/x
  3. Step 3: Cross multiply
    141,304.80x = 211,957.21 × 66,369.98
  4. Step 4: Simplify right side
    141,304.80x = 14,067,596,028.08
  5. Step 5: Solve for x
    x = 14,067,596,028.08/141,304.80
  6. Step 6: Final answer
    x = 99,554.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.