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Finding the Fourth Proportional to 119,689.04, 165,174.84 and 65,976.08

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Solution

The fourth proportional to 119,689.04, 165,174.84 and 65,976.08 is: 91,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,689.04 : 165,174.84 = 65,976.08 : x
  2. Step 2: Convert to fraction form
    119,689.04/165,174.84 = 65,976.08/x
  3. Step 3: Cross multiply
    119,689.04x = 165,174.84 × 65,976.08
  4. Step 4: Simplify right side
    119,689.04x = 10,897,588,457.83
  5. Step 5: Solve for x
    x = 10,897,588,457.83/119,689.04
  6. Step 6: Final answer
    x = 91,049.18

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1.5x scale

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.