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Finding the Fourth Proportional to 165,527.80, 248,291.70 and 155,159.80

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Solution

The fourth proportional to 165,527.80, 248,291.70 and 155,159.80 is: 232,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,527.80 : 248,291.70 = 155,159.80 : x
  2. Step 2: Convert to fraction form
    165,527.80/248,291.70 = 155,159.80/x
  3. Step 3: Cross multiply
    165,527.80x = 248,291.70 × 155,159.80
  4. Step 4: Simplify right side
    165,527.80x = 38,524,890,513.66
  5. Step 5: Solve for x
    x = 38,524,890,513.66/165,527.80
  6. Step 6: Final answer
    x = 232,739.70

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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.