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Finding the Fourth Proportional to 250,402.88, 375,979.49 and 216,772.60

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Solution

The fourth proportional to 250,402.88, 375,979.49 and 216,772.60 is: 325,483.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,402.88 : 375,979.49 = 216,772.60 : x
  2. Step 2: Convert to fraction form
    250,402.88/375,979.49 = 216,772.60/x
  3. Step 3: Cross multiply
    250,402.88x = 375,979.49 × 216,772.60
  4. Step 4: Simplify right side
    250,402.88x = 81,502,049,570.16
  5. Step 5: Solve for x
    x = 81,502,049,570.16/250,402.88
  6. Step 6: Final answer
    x = 325,483.67

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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.