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Finding the Fourth Proportional to 255,218.58, 382,798.71 and 68,244.66

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Solution

The fourth proportional to 255,218.58, 382,798.71 and 68,244.66 is: 102,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,218.58 : 382,798.71 = 68,244.66 : x
  2. Step 2: Convert to fraction form
    255,218.58/382,798.71 = 68,244.66/x
  3. Step 3: Cross multiply
    255,218.58x = 382,798.71 × 68,244.66
  4. Step 4: Simplify right side
    255,218.58x = 26,123,967,812.39
  5. Step 5: Solve for x
    x = 26,123,967,812.39/255,218.58
  6. Step 6: Final answer
    x = 102,359.19

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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.