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Finding the Fourth Proportional to 260,888.56, 391,360.32 and 83,353.84

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Solution

The fourth proportional to 260,888.56, 391,360.32 and 83,353.84 is: 125,039.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,888.56 : 391,360.32 = 83,353.84 : x
  2. Step 2: Convert to fraction form
    260,888.56/391,360.32 = 83,353.84/x
  3. Step 3: Cross multiply
    260,888.56x = 391,360.32 × 83,353.84
  4. Step 4: Simplify right side
    260,888.56x = 32,621,385,495.63
  5. Step 5: Solve for x
    x = 32,621,385,495.63/260,888.56
  6. Step 6: Final answer
    x = 125,039.54

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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.