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Finding the Fourth Proportional to 281,760.12, 388,868.82 and 174,364.74

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Solution

The fourth proportional to 281,760.12, 388,868.82 and 174,364.74 is: 240,648.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,760.12 : 388,868.82 = 174,364.74 : x
  2. Step 2: Convert to fraction form
    281,760.12/388,868.82 = 174,364.74/x
  3. Step 3: Cross multiply
    281,760.12x = 388,868.82 × 174,364.74
  4. Step 4: Simplify right side
    281,760.12x = 67,805,007,877.24
  5. Step 5: Solve for x
    x = 67,805,007,877.24/281,760.12
  6. Step 6: Final answer
    x = 240,648.00

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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.