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Finding the Fourth Proportional to 116,503.92, 160,710.48 and 80,714.88

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Solution

The fourth proportional to 116,503.92, 160,710.48 and 80,714.88 is: 111,341.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503.92 : 160,710.48 = 80,714.88 : x
  2. Step 2: Convert to fraction form
    116,503.92/160,710.48 = 80,714.88/x
  3. Step 3: Cross multiply
    116,503.92x = 160,710.48 × 80,714.88
  4. Step 4: Simplify right side
    116,503.92x = 12,971,727,107.94
  5. Step 5: Solve for x
    x = 12,971,727,107.94/116,503.92
  6. Step 6: Final answer
    x = 111,341.55

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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.