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Finding the Fourth Proportional to 255,009.82, 382,510.40 and 88,793.50

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Solution

The fourth proportional to 255,009.82, 382,510.40 and 88,793.50 is: 133,188.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,009.82 : 382,510.40 = 88,793.50 : x
  2. Step 2: Convert to fraction form
    255,009.82/382,510.40 = 88,793.50/x
  3. Step 3: Cross multiply
    255,009.82x = 382,510.40 × 88,793.50
  4. Step 4: Simplify right side
    255,009.82x = 33,964,437,202.40
  5. Step 5: Solve for x
    x = 33,964,437,202.40/255,009.82
  6. Step 6: Final answer
    x = 133,188.74

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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.