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Finding the Fourth Proportional to 146,929.71, 202,762.98 and 79,861.71

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Solution

The fourth proportional to 146,929.71, 202,762.98 and 79,861.71 is: 110,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,929.71 : 202,762.98 = 79,861.71 : x
  2. Step 2: Convert to fraction form
    146,929.71/202,762.98 = 79,861.71/x
  3. Step 3: Cross multiply
    146,929.71x = 202,762.98 × 79,861.71
  4. Step 4: Simplify right side
    146,929.71x = 16,192,998,307.50
  5. Step 5: Solve for x
    x = 16,192,998,307.50/146,929.71
  6. Step 6: Final answer
    x = 110,209.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.