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Finding the Fourth Proportional to 74,446.51, 102,752.39 and 45,790.80

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Solution

The fourth proportional to 74,446.51, 102,752.39 and 45,790.80 is: 63,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,446.51 : 102,752.39 = 45,790.80 : x
  2. Step 2: Convert to fraction form
    74,446.51/102,752.39 = 45,790.80/x
  3. Step 3: Cross multiply
    74,446.51x = 102,752.39 × 45,790.80
  4. Step 4: Simplify right side
    74,446.51x = 4,705,114,140.01
  5. Step 5: Solve for x
    x = 4,705,114,140.01/74,446.51
  6. Step 6: Final answer
    x = 63,201.27

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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.