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Finding the Fourth Proportional to 178,362.40, 267,316.80 and 73,062.40

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Solution

The fourth proportional to 178,362.40, 267,316.80 and 73,062.40 is: 109,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,362.40 : 267,316.80 = 73,062.40 : x
  2. Step 2: Convert to fraction form
    178,362.40/267,316.80 = 73,062.40/x
  3. Step 3: Cross multiply
    178,362.40x = 267,316.80 × 73,062.40
  4. Step 4: Simplify right side
    178,362.40x = 19,530,806,968.32
  5. Step 5: Solve for x
    x = 19,530,806,968.32/178,362.40
  6. Step 6: Final answer
    x = 109,500.70

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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.