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Finding the Fourth Proportional to 528,042.73, 792,088.70 and 154,065.73

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Solution

The fourth proportional to 528,042.73, 792,088.70 and 154,065.73 is: 231,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,042.73 : 792,088.70 = 154,065.73 : x
  2. Step 2: Convert to fraction form
    528,042.73/792,088.70 = 154,065.73/x
  3. Step 3: Cross multiply
    528,042.73x = 792,088.70 × 154,065.73
  4. Step 4: Simplify right side
    528,042.73x = 122,033,723,790.25
  5. Step 5: Solve for x
    x = 122,033,723,790.25/528,042.73
  6. Step 6: Final answer
    x = 231,105.77

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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.