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Finding the Fourth Proportional to 178,681.96, 267,672.57 and 103,644.46

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Solution

The fourth proportional to 178,681.96, 267,672.57 and 103,644.46 is: 155,263.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,681.96 : 267,672.57 = 103,644.46 : x
  2. Step 2: Convert to fraction form
    178,681.96/267,672.57 = 103,644.46/x
  3. Step 3: Cross multiply
    178,681.96x = 267,672.57 × 103,644.46
  4. Step 4: Simplify right side
    178,681.96x = 27,742,778,974.46
  5. Step 5: Solve for x
    x = 27,742,778,974.46/178,681.96
  6. Step 6: Final answer
    x = 155,263.46

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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.