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Finding the Fourth Proportional to 74,925.60, 103,389.84 and 41,389.44

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Solution

The fourth proportional to 74,925.60, 103,389.84 and 41,389.44 is: 57,113.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,925.60 : 103,389.84 = 41,389.44 : x
  2. Step 2: Convert to fraction form
    74,925.60/103,389.84 = 41,389.44/x
  3. Step 3: Cross multiply
    74,925.60x = 103,389.84 × 41,389.44
  4. Step 4: Simplify right side
    74,925.60x = 4,279,247,579.29
  5. Step 5: Solve for x
    x = 4,279,247,579.29/74,925.60
  6. Step 6: Final answer
    x = 57,113.29

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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.