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Finding the Fourth Proportional to 66,347.80, 99,521.70 and 63,067.30

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Solution

The fourth proportional to 66,347.80, 99,521.70 and 63,067.30 is: 94,600.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,347.80 : 99,521.70 = 63,067.30 : x
  2. Step 2: Convert to fraction form
    66,347.80/99,521.70 = 63,067.30/x
  3. Step 3: Cross multiply
    66,347.80x = 99,521.70 × 63,067.30
  4. Step 4: Simplify right side
    66,347.80x = 6,276,564,910.41
  5. Step 5: Solve for x
    x = 6,276,564,910.41/66,347.80
  6. Step 6: Final answer
    x = 94,600.95

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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.