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Finding the Fourth Proportional to 528,056.73, 792,109.70 and 154,079.73

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Solution

The fourth proportional to 528,056.73, 792,109.70 and 154,079.73 is: 231,126.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,056.73 : 792,109.70 = 154,079.73 : x
  2. Step 2: Convert to fraction form
    528,056.73/792,109.70 = 154,079.73/x
  3. Step 3: Cross multiply
    528,056.73x = 792,109.70 × 154,079.73
  4. Step 4: Simplify right side
    528,056.73x = 122,048,048,706.38
  5. Step 5: Solve for x
    x = 122,048,048,706.38/528,056.73
  6. Step 6: Final answer
    x = 231,126.77

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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.