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Finding the Fourth Proportional to 255,564.61, 352,681.57 and 140,847.39

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Solution

The fourth proportional to 255,564.61, 352,681.57 and 140,847.39 is: 194,370.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,564.61 : 352,681.57 = 140,847.39 : x
  2. Step 2: Convert to fraction form
    255,564.61/352,681.57 = 140,847.39/x
  3. Step 3: Cross multiply
    255,564.61x = 352,681.57 × 140,847.39
  4. Step 4: Simplify right side
    255,564.61x = 49,674,278,987.72
  5. Step 5: Solve for x
    x = 49,674,278,987.72/255,564.61
  6. Step 6: Final answer
    x = 194,370.73

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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.