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Finding the Fourth Proportional to 135,994.77, 187,668.76 and 75,563.91

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Solution

The fourth proportional to 135,994.77, 187,668.76 and 75,563.91 is: 104,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,994.77 : 187,668.76 = 75,563.91 : x
  2. Step 2: Convert to fraction form
    135,994.77/187,668.76 = 75,563.91/x
  3. Step 3: Cross multiply
    135,994.77x = 187,668.76 × 75,563.91
  4. Step 4: Simplify right side
    135,994.77x = 14,180,985,290.45
  5. Step 5: Solve for x
    x = 14,180,985,290.45/135,994.77
  6. Step 6: Final answer
    x = 104,275.96

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1.5x scale

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.