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Finding the Fourth Proportional to 173,867.70, 260,801.55 and 80,555.70

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Solution

The fourth proportional to 173,867.70, 260,801.55 and 80,555.70 is: 120,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,867.70 : 260,801.55 = 80,555.70 : x
  2. Step 2: Convert to fraction form
    173,867.70/260,801.55 = 80,555.70/x
  3. Step 3: Cross multiply
    173,867.70x = 260,801.55 × 80,555.70
  4. Step 4: Simplify right side
    173,867.70x = 21,009,051,421.34
  5. Step 5: Solve for x
    x = 21,009,051,421.34/173,867.70
  6. Step 6: Final answer
    x = 120,833.55

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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.