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Finding the Fourth Proportional to 53,705.32, 74,120.34 and 33,568.72

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Solution

The fourth proportional to 53,705.32, 74,120.34 and 33,568.72 is: 46,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,705.32 : 74,120.34 = 33,568.72 : x
  2. Step 2: Convert to fraction form
    53,705.32/74,120.34 = 33,568.72/x
  3. Step 3: Cross multiply
    53,705.32x = 74,120.34 × 33,568.72
  4. Step 4: Simplify right side
    53,705.32x = 2,488,124,939.76
  5. Step 5: Solve for x
    x = 2,488,124,939.76/53,705.32
  6. Step 6: Final answer
    x = 46,329.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.