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Finding the Fourth Proportional to 260,545.78, 359,559.57 and 145,823.53

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Solution

The fourth proportional to 260,545.78, 359,559.57 and 145,823.53 is: 201,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,545.78 : 359,559.57 = 145,823.53 : x
  2. Step 2: Convert to fraction form
    260,545.78/359,559.57 = 145,823.53/x
  3. Step 3: Cross multiply
    260,545.78x = 359,559.57 × 145,823.53
  4. Step 4: Simplify right side
    260,545.78x = 52,432,245,742.68
  5. Step 5: Solve for x
    x = 52,432,245,742.68/260,545.78
  6. Step 6: Final answer
    x = 201,240.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.