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Finding the Fourth Proportional to 281,337.48, 388,252.56 and 154,012.68

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Solution

The fourth proportional to 281,337.48, 388,252.56 and 154,012.68 is: 212,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,337.48 : 388,252.56 = 154,012.68 : x
  2. Step 2: Convert to fraction form
    281,337.48/388,252.56 = 154,012.68/x
  3. Step 3: Cross multiply
    281,337.48x = 388,252.56 × 154,012.68
  4. Step 4: Simplify right side
    281,337.48x = 59,795,817,282.46
  5. Step 5: Solve for x
    x = 59,795,817,282.46/281,337.48
  6. Step 6: Final answer
    x = 212,541.24

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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.