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Finding the Fourth Proportional to 178,617.80, 267,537.90 and 108,374.60

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Solution

The fourth proportional to 178,617.80, 267,537.90 and 108,374.60 is: 162,326.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,617.80 : 267,537.90 = 108,374.60 : x
  2. Step 2: Convert to fraction form
    178,617.80/267,537.90 = 108,374.60/x
  3. Step 3: Cross multiply
    178,617.80x = 267,537.90 × 108,374.60
  4. Step 4: Simplify right side
    178,617.80x = 28,994,312,897.34
  5. Step 5: Solve for x
    x = 28,994,312,897.34/178,617.80
  6. Step 6: Final answer
    x = 162,326.00

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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.