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Finding the Fourth Proportional to 104,679.40, 156,788.70 and 63,053.80

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Solution

The fourth proportional to 104,679.40, 156,788.70 and 63,053.80 is: 94,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,679.40 : 156,788.70 = 63,053.80 : x
  2. Step 2: Convert to fraction form
    104,679.40/156,788.70 = 63,053.80/x
  3. Step 3: Cross multiply
    104,679.40x = 156,788.70 × 63,053.80
  4. Step 4: Simplify right side
    104,679.40x = 9,886,123,332.06
  5. Step 5: Solve for x
    x = 9,886,123,332.06/104,679.40
  6. Step 6: Final answer
    x = 94,441.92

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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.