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Finding the Fourth Proportional to 208,761.76, 313,510.92 and 155,468.22

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Solution

The fourth proportional to 208,761.76, 313,510.92 and 155,468.22 is: 233,476.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,761.76 : 313,510.92 = 155,468.22 : x
  2. Step 2: Convert to fraction form
    208,761.76/313,510.92 = 155,468.22/x
  3. Step 3: Cross multiply
    208,761.76x = 313,510.92 × 155,468.22
  4. Step 4: Simplify right side
    208,761.76x = 48,740,984,682.96
  5. Step 5: Solve for x
    x = 48,740,984,682.96/208,761.76
  6. Step 6: Final answer
    x = 233,476.59

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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.