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Finding the Fourth Proportional to 178,425.76, 267,636.32 and 43,490.50

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Solution

The fourth proportional to 178,425.76, 267,636.32 and 43,490.50 is: 65,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,425.76 : 267,636.32 = 43,490.50 : x
  2. Step 2: Convert to fraction form
    178,425.76/267,636.32 = 43,490.50/x
  3. Step 3: Cross multiply
    178,425.76x = 267,636.32 × 43,490.50
  4. Step 4: Simplify right side
    178,425.76x = 11,639,637,374.96
  5. Step 5: Solve for x
    x = 11,639,637,374.96/178,425.76
  6. Step 6: Final answer
    x = 65,235.18

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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.