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Finding the Fourth Proportional to 325,718.62, 488,457.84 and 112,432.25

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Solution

The fourth proportional to 325,718.62, 488,457.84 and 112,432.25 is: 168,606.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,718.62 : 488,457.84 = 112,432.25 : x
  2. Step 2: Convert to fraction form
    325,718.62/488,457.84 = 112,432.25/x
  3. Step 3: Cross multiply
    325,718.62x = 488,457.84 × 112,432.25
  4. Step 4: Simplify right side
    325,718.62x = 54,918,415,624.11
  5. Step 5: Solve for x
    x = 54,918,415,624.11/325,718.62
  6. Step 6: Final answer
    x = 168,606.93

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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.