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Finding the Fourth Proportional to 178,476.66, 267,628.86 and 103,615.66

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Solution

The fourth proportional to 178,476.66, 267,628.86 and 103,615.66 is: 155,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,476.66 : 267,628.86 = 103,615.66 : x
  2. Step 2: Convert to fraction form
    178,476.66/267,628.86 = 103,615.66/x
  3. Step 3: Cross multiply
    178,476.66x = 267,628.86 × 103,615.66
  4. Step 4: Simplify right side
    178,476.66x = 27,730,540,963.95
  5. Step 5: Solve for x
    x = 27,730,540,963.95/178,476.66
  6. Step 6: Final answer
    x = 155,373.49

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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.