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Finding the Fourth Proportional to 281,525.93, 388,510.83 and 154,193.32

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Solution

The fourth proportional to 281,525.93, 388,510.83 and 154,193.32 is: 212,789.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,525.93 : 388,510.83 = 154,193.32 : x
  2. Step 2: Convert to fraction form
    281,525.93/388,510.83 = 154,193.32/x
  3. Step 3: Cross multiply
    281,525.93x = 388,510.83 × 154,193.32
  4. Step 4: Simplify right side
    281,525.93x = 59,905,775,219.29
  5. Step 5: Solve for x
    x = 59,905,775,219.29/281,525.93
  6. Step 6: Final answer
    x = 212,789.55

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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.