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Finding the Fourth Proportional to 178,646.33, 267,619.16 and 103,608.87

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Solution

The fourth proportional to 178,646.33, 267,619.16 and 103,608.87 is: 155,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,646.33 : 267,619.16 = 103,608.87 : x
  2. Step 2: Convert to fraction form
    178,646.33/267,619.16 = 103,608.87/x
  3. Step 3: Cross multiply
    178,646.33x = 267,619.16 × 103,608.87
  4. Step 4: Simplify right side
    178,646.33x = 27,727,718,239.90
  5. Step 5: Solve for x
    x = 27,727,718,239.90/178,646.33
  6. Step 6: Final answer
    x = 155,210.12

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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.