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Finding the Fourth Proportional to 178,423.80, 267,621.80 and 66,051.15

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Solution

The fourth proportional to 178,423.80, 267,621.80 and 66,051.15 is: 99,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,423.80 : 267,621.80 = 66,051.15 : x
  2. Step 2: Convert to fraction form
    178,423.80/267,621.80 = 66,051.15/x
  3. Step 3: Cross multiply
    178,423.80x = 267,621.80 × 66,051.15
  4. Step 4: Simplify right side
    178,423.80x = 17,676,727,324.81
  5. Step 5: Solve for x
    x = 17,676,727,324.81/178,423.80
  6. Step 6: Final answer
    x = 99,071.58

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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.