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Finding the Fourth Proportional to 73,322.90, 101,173.28 and 42,702.47

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Solution

The fourth proportional to 73,322.90, 101,173.28 and 42,702.47 is: 58,922.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,322.90 : 101,173.28 = 42,702.47 : x
  2. Step 2: Convert to fraction form
    73,322.90/101,173.28 = 42,702.47/x
  3. Step 3: Cross multiply
    73,322.90x = 101,173.28 × 42,702.47
  4. Step 4: Simplify right side
    73,322.90x = 4,320,348,234.62
  5. Step 5: Solve for x
    x = 4,320,348,234.62/73,322.90
  6. Step 6: Final answer
    x = 58,922.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.