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Finding the Fourth Proportional to 173,686.20, 260,543.70 and 55,354.20

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Solution

The fourth proportional to 173,686.20, 260,543.70 and 55,354.20 is: 83,035.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,686.20 : 260,543.70 = 55,354.20 : x
  2. Step 2: Convert to fraction form
    173,686.20/260,543.70 = 55,354.20/x
  3. Step 3: Cross multiply
    173,686.20x = 260,543.70 × 55,354.20
  4. Step 4: Simplify right side
    173,686.20x = 14,422,188,078.54
  5. Step 5: Solve for x
    x = 14,422,188,078.54/173,686.20
  6. Step 6: Final answer
    x = 83,035.89

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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.