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Finding the Fourth Proportional to 173,855.80, 260,783.70 and 55,539.10

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Solution

The fourth proportional to 173,855.80, 260,783.70 and 55,539.10 is: 83,308.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,855.80 : 260,783.70 = 55,539.10 : x
  2. Step 2: Convert to fraction form
    173,855.80/260,783.70 = 55,539.10/x
  3. Step 3: Cross multiply
    173,855.80x = 260,783.70 × 55,539.10
  4. Step 4: Simplify right side
    173,855.80x = 14,483,691,992.67
  5. Step 5: Solve for x
    x = 14,483,691,992.67/173,855.80
  6. Step 6: Final answer
    x = 83,308.65

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Similar ratio
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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.