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Finding the Fourth Proportional to 178,471.95, 267,945.51 and 103,645.80

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Solution

The fourth proportional to 178,471.95, 267,945.51 and 103,645.80 is: 155,606.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,471.95 : 267,945.51 = 103,645.80 : x
  2. Step 2: Convert to fraction form
    178,471.95/267,945.51 = 103,645.80/x
  3. Step 3: Cross multiply
    178,471.95x = 267,945.51 × 103,645.80
  4. Step 4: Simplify right side
    178,471.95x = 27,771,426,740.36
  5. Step 5: Solve for x
    x = 27,771,426,740.36/178,471.95
  6. Step 6: Final answer
    x = 155,606.68

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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.