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Finding the Fourth Proportional to 109,666.70, 164,500.05 and 47,337.20

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Solution

The fourth proportional to 109,666.70, 164,500.05 and 47,337.20 is: 71,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,666.70 : 164,500.05 = 47,337.20 : x
  2. Step 2: Convert to fraction form
    109,666.70/164,500.05 = 47,337.20/x
  3. Step 3: Cross multiply
    109,666.70x = 164,500.05 × 47,337.20
  4. Step 4: Simplify right side
    109,666.70x = 7,786,971,766.86
  5. Step 5: Solve for x
    x = 7,786,971,766.86/109,666.70
  6. Step 6: Final answer
    x = 71,005.80

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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.