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Finding the Fourth Proportional to 216,984.65, 325,492.57 and 74,827.88

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Solution

The fourth proportional to 216,984.65, 325,492.57 and 74,827.88 is: 112,247.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,984.65 : 325,492.57 = 74,827.88 : x
  2. Step 2: Convert to fraction form
    216,984.65/325,492.57 = 74,827.88/x
  3. Step 3: Cross multiply
    216,984.65x = 325,492.57 × 74,827.88
  4. Step 4: Simplify right side
    216,984.65x = 24,355,918,968.85
  5. Step 5: Solve for x
    x = 24,355,918,968.85/216,984.65
  6. Step 6: Final answer
    x = 112,247.20

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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.