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Finding the Fourth Proportional to 263,534.71, 395,159.88 and 136,862.45

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Solution

The fourth proportional to 263,534.71, 395,159.88 and 136,862.45 is: 205,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,534.71 : 395,159.88 = 136,862.45 : x
  2. Step 2: Convert to fraction form
    263,534.71/395,159.88 = 136,862.45/x
  3. Step 3: Cross multiply
    263,534.71x = 395,159.88 × 136,862.45
  4. Step 4: Simplify right side
    263,534.71x = 54,082,549,318.51
  5. Step 5: Solve for x
    x = 54,082,549,318.51/263,534.71
  6. Step 6: Final answer
    x = 205,219.83

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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.