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Finding the Fourth Proportional to 76,306.60, 114,477.30 and 23,721.40

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Solution

The fourth proportional to 76,306.60, 114,477.30 and 23,721.40 is: 35,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,306.60 : 114,477.30 = 23,721.40 : x
  2. Step 2: Convert to fraction form
    76,306.60/114,477.30 = 23,721.40/x
  3. Step 3: Cross multiply
    76,306.60x = 114,477.30 × 23,721.40
  4. Step 4: Simplify right side
    76,306.60x = 2,715,561,824.22
  5. Step 5: Solve for x
    x = 2,715,561,824.22/76,306.60
  6. Step 6: Final answer
    x = 35,587.51

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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.