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Finding the Fourth Proportional to 263,532.71, 395,156.88 and 136,860.45

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Solution

The fourth proportional to 263,532.71, 395,156.88 and 136,860.45 is: 205,216.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,532.71 : 395,156.88 = 136,860.45 : x
  2. Step 2: Convert to fraction form
    263,532.71/395,156.88 = 136,860.45/x
  3. Step 3: Cross multiply
    263,532.71x = 395,156.88 × 136,860.45
  4. Step 4: Simplify right side
    263,532.71x = 54,081,348,417.40
  5. Step 5: Solve for x
    x = 54,081,348,417.40/263,532.71
  6. Step 6: Final answer
    x = 205,216.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.