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Finding the Fourth Proportional to 255,756.18, 352,935.44 and 141,039.66

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Solution

The fourth proportional to 255,756.18, 352,935.44 and 141,039.66 is: 194,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,756.18 : 352,935.44 = 141,039.66 : x
  2. Step 2: Convert to fraction form
    255,756.18/352,935.44 = 141,039.66/x
  3. Step 3: Cross multiply
    255,756.18x = 352,935.44 × 141,039.66
  4. Step 4: Simplify right side
    255,756.18x = 49,777,895,606.76
  5. Step 5: Solve for x
    x = 49,777,895,606.76/255,756.18
  6. Step 6: Final answer
    x = 194,630.27

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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.