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Finding the Fourth Proportional to 281,762.36, 388,871.92 and 174,366.98

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Solution

The fourth proportional to 281,762.36, 388,871.92 and 174,366.98 is: 240,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,762.36 : 388,871.92 = 174,366.98 : x
  2. Step 2: Convert to fraction form
    281,762.36/388,871.92 = 174,366.98/x
  3. Step 3: Cross multiply
    281,762.36x = 388,871.92 × 174,366.98
  4. Step 4: Simplify right side
    281,762.36x = 67,806,422,297.20
  5. Step 5: Solve for x
    x = 67,806,422,297.20/281,762.36
  6. Step 6: Final answer
    x = 240,651.10

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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.