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Finding the Fourth Proportional to 104,386.70, 156,579.30 and 25,500.20

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Solution

The fourth proportional to 104,386.70, 156,579.30 and 25,500.20 is: 38,250.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,386.70 : 156,579.30 = 25,500.20 : x
  2. Step 2: Convert to fraction form
    104,386.70/156,579.30 = 25,500.20/x
  3. Step 3: Cross multiply
    104,386.70x = 156,579.30 × 25,500.20
  4. Step 4: Simplify right side
    104,386.70x = 3,992,803,465.86
  5. Step 5: Solve for x
    x = 3,992,803,465.86/104,386.70
  6. Step 6: Final answer
    x = 38,250.12

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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.