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Finding the Fourth Proportional to 119,714.91, 165,203.28 and 65,999.94

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Solution

The fourth proportional to 119,714.91, 165,203.28 and 65,999.94 is: 91,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,714.91 : 165,203.28 = 65,999.94 : x
  2. Step 2: Convert to fraction form
    119,714.91/165,203.28 = 65,999.94/x
  3. Step 3: Cross multiply
    119,714.91x = 165,203.28 × 65,999.94
  4. Step 4: Simplify right side
    119,714.91x = 10,903,406,567.80
  5. Step 5: Solve for x
    x = 10,903,406,567.80/119,714.91
  6. Step 6: Final answer
    x = 91,078.10

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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.