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Finding the Fourth Proportional to 75,160.80, 103,722.48 and 43,328.88

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Solution

The fourth proportional to 75,160.80, 103,722.48 and 43,328.88 is: 59,794.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,160.80 : 103,722.48 = 43,328.88 : x
  2. Step 2: Convert to fraction form
    75,160.80/103,722.48 = 43,328.88/x
  3. Step 3: Cross multiply
    75,160.80x = 103,722.48 × 43,328.88
  4. Step 4: Simplify right side
    75,160.80x = 4,494,178,889.22
  5. Step 5: Solve for x
    x = 4,494,178,889.22/75,160.80
  6. Step 6: Final answer
    x = 59,794.19

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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.