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Finding the Fourth Proportional to 178,457.23, 267,159.92 and 156,313.86

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Solution

The fourth proportional to 178,457.23, 267,159.92 and 156,313.86 is: 234,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,457.23 : 267,159.92 = 156,313.86 : x
  2. Step 2: Convert to fraction form
    178,457.23/267,159.92 = 156,313.86/x
  3. Step 3: Cross multiply
    178,457.23x = 267,159.92 × 156,313.86
  4. Step 4: Simplify right side
    178,457.23x = 41,760,797,428.34
  5. Step 5: Solve for x
    x = 41,760,797,428.34/178,457.23
  6. Step 6: Final answer
    x = 234,010.12

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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.