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Finding the Fourth Proportional to 74,755.44, 103,157.82 and 42,901.92

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Solution

The fourth proportional to 74,755.44, 103,157.82 and 42,901.92 is: 59,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,755.44 : 103,157.82 = 42,901.92 : x
  2. Step 2: Convert to fraction form
    74,755.44/103,157.82 = 42,901.92/x
  3. Step 3: Cross multiply
    74,755.44x = 103,157.82 × 42,901.92
  4. Step 4: Simplify right side
    74,755.44x = 4,425,668,541.01
  5. Step 5: Solve for x
    x = 4,425,668,541.01/74,755.44
  6. Step 6: Final answer
    x = 59,201.96

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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.