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Finding the Fourth Proportional to 119,203.34, 178,848.62 and 112,161.20

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Solution

The fourth proportional to 119,203.34, 178,848.62 and 112,161.20 is: 168,282.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,203.34 : 178,848.62 = 112,161.20 : x
  2. Step 2: Convert to fraction form
    119,203.34/178,848.62 = 112,161.20/x
  3. Step 3: Cross multiply
    119,203.34x = 178,848.62 × 112,161.20
  4. Step 4: Simplify right side
    119,203.34x = 20,059,875,276.74
  5. Step 5: Solve for x
    x = 20,059,875,276.74/119,203.34
  6. Step 6: Final answer
    x = 168,282.83

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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.