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Finding the Fourth Proportional to 116,612.46, 175,093.65 and 66,748.86

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Solution

The fourth proportional to 116,612.46, 175,093.65 and 66,748.86 is: 100,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,612.46 : 175,093.65 = 66,748.86 : x
  2. Step 2: Convert to fraction form
    116,612.46/175,093.65 = 66,748.86/x
  3. Step 3: Cross multiply
    116,612.46x = 175,093.65 × 66,748.86
  4. Step 4: Simplify right side
    116,612.46x = 11,687,301,530.74
  5. Step 5: Solve for x
    x = 11,687,301,530.74/116,612.46
  6. Step 6: Final answer
    x = 100,223.44

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1.5x scale

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.