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Finding the Fourth Proportional to 178,639.58, 267,609.03 and 103,602.08

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Solution

The fourth proportional to 178,639.58, 267,609.03 and 103,602.08 is: 155,199.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,639.58 : 267,609.03 = 103,602.08 : x
  2. Step 2: Convert to fraction form
    178,639.58/267,609.03 = 103,602.08/x
  3. Step 3: Cross multiply
    178,639.58x = 267,609.03 × 103,602.08
  4. Step 4: Simplify right side
    178,639.58x = 27,724,852,134.78
  5. Step 5: Solve for x
    x = 27,724,852,134.78/178,639.58
  6. Step 6: Final answer
    x = 155,199.94

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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.