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Finding the Fourth Proportional to 113,003.98, 169,534.45 and 79,788.92

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Solution

The fourth proportional to 113,003.98, 169,534.45 and 79,788.92 is: 119,703.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,003.98 : 169,534.45 = 79,788.92 : x
  2. Step 2: Convert to fraction form
    113,003.98/169,534.45 = 79,788.92/x
  3. Step 3: Cross multiply
    113,003.98x = 169,534.45 × 79,788.92
  4. Step 4: Simplify right side
    113,003.98x = 13,526,970,668.29
  5. Step 5: Solve for x
    x = 13,526,970,668.29/113,003.98
  6. Step 6: Final answer
    x = 119,703.49

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1.5x scale

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.