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Finding the Fourth Proportional to 178,473.22, 267,623.71 and 103,612.21

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Solution

The fourth proportional to 178,473.22, 267,623.71 and 103,612.21 is: 155,368.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,473.22 : 267,623.71 = 103,612.21 : x
  2. Step 2: Convert to fraction form
    178,473.22/267,623.71 = 103,612.21/x
  3. Step 3: Cross multiply
    178,473.22x = 267,623.71 × 103,612.21
  4. Step 4: Simplify right side
    178,473.22x = 27,729,084,041.50
  5. Step 5: Solve for x
    x = 27,729,084,041.50/178,473.22
  6. Step 6: Final answer
    x = 155,368.32

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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.