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Finding the Fourth Proportional to 119,178.83, 178,602.17 and 89,562.07

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Solution

The fourth proportional to 119,178.83, 178,602.17 and 89,562.07 is: 134,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,178.83 : 178,602.17 = 89,562.07 : x
  2. Step 2: Convert to fraction form
    119,178.83/178,602.17 = 89,562.07/x
  3. Step 3: Cross multiply
    119,178.83x = 178,602.17 × 89,562.07
  4. Step 4: Simplify right side
    119,178.83x = 15,995,980,051.69
  5. Step 5: Solve for x
    x = 15,995,980,051.69/119,178.83
  6. Step 6: Final answer
    x = 134,218.30

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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.