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Finding the Fourth Proportional to 260,651.32, 359,657.11 and 145,934.76

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Solution

The fourth proportional to 260,651.32, 359,657.11 and 145,934.76 is: 201,366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,651.32 : 359,657.11 = 145,934.76 : x
  2. Step 2: Convert to fraction form
    260,651.32/359,657.11 = 145,934.76/x
  3. Step 3: Cross multiply
    260,651.32x = 359,657.11 × 145,934.76
  4. Step 4: Simplify right side
    260,651.32x = 52,486,475,561.28
  5. Step 5: Solve for x
    x = 52,486,475,561.28/260,651.32
  6. Step 6: Final answer
    x = 201,366.62

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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.