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Finding the Fourth Proportional to 112,104, 154,703.52 and 61,806.24

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Solution

The fourth proportional to 112,104, 154,703.52 and 61,806.24 is: 85,292.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,104 : 154,703.52 = 61,806.24 : x
  2. Step 2: Convert to fraction form
    112,104/154,703.52 = 61,806.24/x
  3. Step 3: Cross multiply
    112,104x = 154,703.52 × 61,806.24
  4. Step 4: Simplify right side
    112,104x = 9,561,642,885.96
  5. Step 5: Solve for x
    x = 9,561,642,885.96/112,104
  6. Step 6: Final answer
    x = 85,292.61

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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.