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Finding the Fourth Proportional to 108,537.32, 162,674.76 and 55,918.10

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Solution

The fourth proportional to 108,537.32, 162,674.76 and 55,918.10 is: 83,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,537.32 : 162,674.76 = 55,918.10 : x
  2. Step 2: Convert to fraction form
    108,537.32/162,674.76 = 55,918.10/x
  3. Step 3: Cross multiply
    108,537.32x = 162,674.76 × 55,918.10
  4. Step 4: Simplify right side
    108,537.32x = 9,096,463,497.16
  5. Step 5: Solve for x
    x = 9,096,463,497.16/108,537.32
  6. Step 6: Final answer
    x = 83,809.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.