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Finding the Fourth Proportional to 118,020.51, 162,866.24 and 64,305.96

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Solution

The fourth proportional to 118,020.51, 162,866.24 and 64,305.96 is: 88,741.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,020.51 : 162,866.24 = 64,305.96 : x
  2. Step 2: Convert to fraction form
    118,020.51/162,866.24 = 64,305.96/x
  3. Step 3: Cross multiply
    118,020.51x = 162,866.24 × 64,305.96
  4. Step 4: Simplify right side
    118,020.51x = 10,473,269,914.79
  5. Step 5: Solve for x
    x = 10,473,269,914.79/118,020.51
  6. Step 6: Final answer
    x = 88,741.10

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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.