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Finding the Fourth Proportional to 112,457.84, 168,733.64 and 49,323.32

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Solution

The fourth proportional to 112,457.84, 168,733.64 and 49,323.32 is: 74,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,457.84 : 168,733.64 = 49,323.32 : x
  2. Step 2: Convert to fraction form
    112,457.84/168,733.64 = 49,323.32/x
  3. Step 3: Cross multiply
    112,457.84x = 168,733.64 × 49,323.32
  4. Step 4: Simplify right side
    112,457.84x = 8,322,503,865.63
  5. Step 5: Solve for x
    x = 8,322,503,865.63/112,457.84
  6. Step 6: Final answer
    x = 74,005.55

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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.