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Finding the Fourth Proportional to 173,688.40, 260,556.90 and 73,847.80

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Solution

The fourth proportional to 173,688.40, 260,556.90 and 73,847.80 is: 110,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,688.40 : 260,556.90 = 73,847.80 : x
  2. Step 2: Convert to fraction form
    173,688.40/260,556.90 = 73,847.80/x
  3. Step 3: Cross multiply
    173,688.40x = 260,556.90 × 73,847.80
  4. Step 4: Simplify right side
    173,688.40x = 19,241,553,839.82
  5. Step 5: Solve for x
    x = 19,241,553,839.82/173,688.40
  6. Step 6: Final answer
    x = 110,782.03

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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.