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Finding the Fourth Proportional to 112,788, 169,193.43 and 41,729.40

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Solution

The fourth proportional to 112,788, 169,193.43 and 41,729.40 is: 62,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,788 : 169,193.43 = 41,729.40 : x
  2. Step 2: Convert to fraction form
    112,788/169,193.43 = 41,729.40/x
  3. Step 3: Cross multiply
    112,788x = 169,193.43 × 41,729.40
  4. Step 4: Simplify right side
    112,788x = 7,060,340,317.84
  5. Step 5: Solve for x
    x = 7,060,340,317.84/112,788
  6. Step 6: Final answer
    x = 62,598.33

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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.