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Finding the Fourth Proportional to 104,020.70, 156,031.05 and 101,104.70

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Solution

The fourth proportional to 104,020.70, 156,031.05 and 101,104.70 is: 151,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,020.70 : 156,031.05 = 101,104.70 : x
  2. Step 2: Convert to fraction form
    104,020.70/156,031.05 = 101,104.70/x
  3. Step 3: Cross multiply
    104,020.70x = 156,031.05 × 101,104.70
  4. Step 4: Simplify right side
    104,020.70x = 15,775,472,500.94
  5. Step 5: Solve for x
    x = 15,775,472,500.94/104,020.70
  6. Step 6: Final answer
    x = 151,657.05

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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.