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Finding the Fourth Proportional to 178,423.68, 267,621.61 and 66,051.03

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Solution

The fourth proportional to 178,423.68, 267,621.61 and 66,051.03 is: 99,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,423.68 : 267,621.61 = 66,051.03 : x
  2. Step 2: Convert to fraction form
    178,423.68/267,621.61 = 66,051.03/x
  3. Step 3: Cross multiply
    178,423.68x = 267,621.61 × 66,051.03
  4. Step 4: Simplify right side
    178,423.68x = 17,676,681,487.52
  5. Step 5: Solve for x
    x = 17,676,681,487.52/178,423.68
  6. Step 6: Final answer
    x = 99,071.39

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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.