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Finding the Fourth Proportional to 75,063.72, 103,555.72 and 43,225.88

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Solution

The fourth proportional to 75,063.72, 103,555.72 and 43,225.88 is: 59,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.72 : 103,555.72 = 43,225.88 : x
  2. Step 2: Convert to fraction form
    75,063.72/103,555.72 = 43,225.88/x
  3. Step 3: Cross multiply
    75,063.72x = 103,555.72 × 43,225.88
  4. Step 4: Simplify right side
    75,063.72x = 4,476,287,126.03
  5. Step 5: Solve for x
    x = 4,476,287,126.03/75,063.72
  6. Step 6: Final answer
    x = 59,633.16

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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.