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Finding the Fourth Proportional to 528,065.80, 792,098.70 and 154,040.20

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Solution

The fourth proportional to 528,065.80, 792,098.70 and 154,040.20 is: 231,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,065.80 : 792,098.70 = 154,040.20 : x
  2. Step 2: Convert to fraction form
    528,065.80/792,098.70 = 154,040.20/x
  3. Step 3: Cross multiply
    528,065.80x = 792,098.70 × 154,040.20
  4. Step 4: Simplify right side
    528,065.80x = 122,015,042,167.74
  5. Step 5: Solve for x
    x = 122,015,042,167.74/528,065.80
  6. Step 6: Final answer
    x = 231,060.30

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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.