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Finding the Fourth Proportional to 119,609.02, 179,221.92 and 91,495

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Solution

The fourth proportional to 119,609.02, 179,221.92 and 91,495 is: 137,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,609.02 : 179,221.92 = 91,495 : x
  2. Step 2: Convert to fraction form
    119,609.02/179,221.92 = 91,495/x
  3. Step 3: Cross multiply
    119,609.02x = 179,221.92 × 91,495
  4. Step 4: Simplify right side
    119,609.02x = 16,397,909,570.40
  5. Step 5: Solve for x
    x = 16,397,909,570.40/119,609.02
  6. Step 6: Final answer
    x = 137,095.93

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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.