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Finding the Fourth Proportional to 260,315.28, 359,253.36 and 147,138.84

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Solution

The fourth proportional to 260,315.28, 359,253.36 and 147,138.84 is: 203,061.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,315.28 : 359,253.36 = 147,138.84 : x
  2. Step 2: Convert to fraction form
    260,315.28/359,253.36 = 147,138.84/x
  3. Step 3: Cross multiply
    260,315.28x = 359,253.36 × 147,138.84
  4. Step 4: Simplify right side
    260,315.28x = 52,860,122,656.50
  5. Step 5: Solve for x
    x = 52,860,122,656.50/260,315.28
  6. Step 6: Final answer
    x = 203,061.93

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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.