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Finding the Fourth Proportional to 74,773, 112,165.98 and 19,369

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Solution

The fourth proportional to 74,773, 112,165.98 and 19,369 is: 29,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,773 : 112,165.98 = 19,369 : x
  2. Step 2: Convert to fraction form
    74,773/112,165.98 = 19,369/x
  3. Step 3: Cross multiply
    74,773x = 112,165.98 × 19,369
  4. Step 4: Simplify right side
    74,773x = 2,172,542,866.62
  5. Step 5: Solve for x
    x = 2,172,542,866.62/74,773
  6. Step 6: Final answer
    x = 29,055.18

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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.