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Finding the Fourth Proportional to 118,767.57, 163,837.13 and 73,431.06

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Solution

The fourth proportional to 118,767.57, 163,837.13 and 73,431.06 is: 101,296.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,767.57 : 163,837.13 = 73,431.06 : x
  2. Step 2: Convert to fraction form
    118,767.57/163,837.13 = 73,431.06/x
  3. Step 3: Cross multiply
    118,767.57x = 163,837.13 × 73,431.06
  4. Step 4: Simplify right side
    118,767.57x = 12,030,733,554.76
  5. Step 5: Solve for x
    x = 12,030,733,554.76/118,767.57
  6. Step 6: Final answer
    x = 101,296.46

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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.