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Finding the Fourth Proportional to 321,113.17, 481,510.99 and 188,026.93

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Solution

The fourth proportional to 321,113.17, 481,510.99 and 188,026.93 is: 281,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,113.17 : 481,510.99 = 188,026.93 : x
  2. Step 2: Convert to fraction form
    321,113.17/481,510.99 = 188,026.93/x
  3. Step 3: Cross multiply
    321,113.17x = 481,510.99 × 188,026.93
  4. Step 4: Simplify right side
    321,113.17x = 90,537,033,210.96
  5. Step 5: Solve for x
    x = 90,537,033,210.96/321,113.17
  6. Step 6: Final answer
    x = 281,947.43

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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.