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Finding the Fourth Proportional to 168,678.72, 253,026.18 and 50,359.32

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Solution

The fourth proportional to 168,678.72, 253,026.18 and 50,359.32 is: 75,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,678.72 : 253,026.18 = 50,359.32 : x
  2. Step 2: Convert to fraction form
    168,678.72/253,026.18 = 50,359.32/x
  3. Step 3: Cross multiply
    168,678.72x = 253,026.18 × 50,359.32
  4. Step 4: Simplify right side
    168,678.72x = 12,742,226,367.00
  5. Step 5: Solve for x
    x = 12,742,226,367.00/168,678.72
  6. Step 6: Final answer
    x = 75,541.40

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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.