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Finding the Fourth Proportional to 253,064.93, 379,702.90 and 111,012.16

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Solution

The fourth proportional to 253,064.93, 379,702.90 and 111,012.16 is: 166,564.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,064.93 : 379,702.90 = 111,012.16 : x
  2. Step 2: Convert to fraction form
    253,064.93/379,702.90 = 111,012.16/x
  3. Step 3: Cross multiply
    253,064.93x = 379,702.90 × 111,012.16
  4. Step 4: Simplify right side
    253,064.93x = 42,151,639,087.26
  5. Step 5: Solve for x
    x = 42,151,639,087.26/253,064.93
  6. Step 6: Final answer
    x = 166,564.52

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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.