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Finding the Fourth Proportional to 112,250.61, 168,489.72 and 56,130.84

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Solution

The fourth proportional to 112,250.61, 168,489.72 and 56,130.84 is: 84,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,250.61 : 168,489.72 = 56,130.84 : x
  2. Step 2: Convert to fraction form
    112,250.61/168,489.72 = 56,130.84/x
  3. Step 3: Cross multiply
    112,250.61x = 168,489.72 × 56,130.84
  4. Step 4: Simplify right side
    112,250.61x = 9,457,469,514.96
  5. Step 5: Solve for x
    x = 9,457,469,514.96/112,250.61
  6. Step 6: Final answer
    x = 84,253.17

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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.