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Finding the Fourth Proportional to 169,115.81, 253,702.94 and 56,806.88

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Solution

The fourth proportional to 169,115.81, 253,702.94 and 56,806.88 is: 85,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,115.81 : 253,702.94 = 56,806.88 : x
  2. Step 2: Convert to fraction form
    169,115.81/253,702.94 = 56,806.88/x
  3. Step 3: Cross multiply
    169,115.81x = 253,702.94 × 56,806.88
  4. Step 4: Simplify right side
    169,115.81x = 14,412,070,915.68
  5. Step 5: Solve for x
    x = 14,412,070,915.68/169,115.81
  6. Step 6: Final answer
    x = 85,220.13

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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.