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Finding the Fourth Proportional to 575,961.40, 863,843.63 and 155,138.86

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Solution

The fourth proportional to 575,961.40, 863,843.63 and 155,138.86 is: 232,681.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,961.40 : 863,843.63 = 155,138.86 : x
  2. Step 2: Convert to fraction form
    575,961.40/863,843.63 = 155,138.86/x
  3. Step 3: Cross multiply
    575,961.40x = 863,843.63 × 155,138.86
  4. Step 4: Simplify right side
    575,961.40x = 134,015,711,657.24
  5. Step 5: Solve for x
    x = 134,015,711,657.24/575,961.40
  6. Step 6: Final answer
    x = 232,681.76

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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.