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Finding the Fourth Proportional to 281,765.71, 388,876.55 and 174,370.33

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Solution

The fourth proportional to 281,765.71, 388,876.55 and 174,370.33 is: 240,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,765.71 : 388,876.55 = 174,370.33 : x
  2. Step 2: Convert to fraction form
    281,765.71/388,876.55 = 174,370.33/x
  3. Step 3: Cross multiply
    281,765.71x = 388,876.55 × 174,370.33
  4. Step 4: Simplify right side
    281,765.71x = 67,808,529,536.53
  5. Step 5: Solve for x
    x = 67,808,529,536.53/281,765.71
  6. Step 6: Final answer
    x = 240,655.72

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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.