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Finding the Fourth Proportional to 112,795, 155,662.20 and 62,494

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Solution

The fourth proportional to 112,795, 155,662.20 and 62,494 is: 86,244.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,795 : 155,662.20 = 62,494 : x
  2. Step 2: Convert to fraction form
    112,795/155,662.20 = 62,494/x
  3. Step 3: Cross multiply
    112,795x = 155,662.20 × 62,494
  4. Step 4: Simplify right side
    112,795x = 9,727,953,526.80
  5. Step 5: Solve for x
    x = 9,727,953,526.80/112,795
  6. Step 6: Final answer
    x = 86,244.55

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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.