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Finding the Fourth Proportional to 260,416.60, 359,373.18 and 147,239.80

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Solution

The fourth proportional to 260,416.60, 359,373.18 and 147,239.80 is: 203,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,416.60 : 359,373.18 = 147,239.80 : x
  2. Step 2: Convert to fraction form
    260,416.60/359,373.18 = 147,239.80/x
  3. Step 3: Cross multiply
    260,416.60x = 359,373.18 × 147,239.80
  4. Step 4: Simplify right side
    260,416.60x = 52,914,035,148.56
  5. Step 5: Solve for x
    x = 52,914,035,148.56/260,416.60
  6. Step 6: Final answer
    x = 203,189.95

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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.