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Finding the Fourth Proportional to 112,967.72, 169,347.88 and 39,043.88

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Solution

The fourth proportional to 112,967.72, 169,347.88 and 39,043.88 is: 58,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,967.72 : 169,347.88 = 39,043.88 : x
  2. Step 2: Convert to fraction form
    112,967.72/169,347.88 = 39,043.88/x
  3. Step 3: Cross multiply
    112,967.72x = 169,347.88 × 39,043.88
  4. Step 4: Simplify right side
    112,967.72x = 6,611,998,304.97
  5. Step 5: Solve for x
    x = 6,611,998,304.97/112,967.72
  6. Step 6: Final answer
    x = 58,529.98

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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.