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Finding the Fourth Proportional to 195,364.80, 293,047.20 and 47,620.80

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Solution

The fourth proportional to 195,364.80, 293,047.20 and 47,620.80 is: 71,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,364.80 : 293,047.20 = 47,620.80 : x
  2. Step 2: Convert to fraction form
    195,364.80/293,047.20 = 47,620.80/x
  3. Step 3: Cross multiply
    195,364.80x = 293,047.20 × 47,620.80
  4. Step 4: Simplify right side
    195,364.80x = 13,955,142,101.76
  5. Step 5: Solve for x
    x = 13,955,142,101.76/195,364.80
  6. Step 6: Final answer
    x = 71,431.20

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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.