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Finding the Fourth Proportional to 258,648.54, 356,945.08 and 156,616.34

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Solution

The fourth proportional to 258,648.54, 356,945.08 and 156,616.34 is: 216,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,648.54 : 356,945.08 = 156,616.34 : x
  2. Step 2: Convert to fraction form
    258,648.54/356,945.08 = 156,616.34/x
  3. Step 3: Cross multiply
    258,648.54x = 356,945.08 × 156,616.34
  4. Step 4: Simplify right side
    258,648.54x = 55,903,432,010.61
  5. Step 5: Solve for x
    x = 55,903,432,010.61/258,648.54
  6. Step 6: Final answer
    x = 216,136.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.