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Finding the Fourth Proportional to 178,542, 246,387.96 and 99,054

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Solution

The fourth proportional to 178,542, 246,387.96 and 99,054 is: 136,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,542 : 246,387.96 = 99,054 : x
  2. Step 2: Convert to fraction form
    178,542/246,387.96 = 99,054/x
  3. Step 3: Cross multiply
    178,542x = 246,387.96 × 99,054
  4. Step 4: Simplify right side
    178,542x = 24,405,712,989.84
  5. Step 5: Solve for x
    x = 24,405,712,989.84/178,542
  6. Step 6: Final answer
    x = 136,694.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.