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Finding the Fourth Proportional to 112,903, 169,354.58 and 28,669.48

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Solution

The fourth proportional to 112,903, 169,354.58 and 28,669.48 is: 43,004.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,903 : 169,354.58 = 28,669.48 : x
  2. Step 2: Convert to fraction form
    112,903/169,354.58 = 28,669.48/x
  3. Step 3: Cross multiply
    112,903x = 169,354.58 × 28,669.48
  4. Step 4: Simplify right side
    112,903x = 4,855,307,744.22
  5. Step 5: Solve for x
    x = 4,855,307,744.22/112,903
  6. Step 6: Final answer
    x = 43,004.24

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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.