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Finding the Fourth Proportional to 374,648.33, 562,193.93 and 138,157.09

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Solution

The fourth proportional to 374,648.33, 562,193.93 and 138,157.09 is: 207,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,648.33 : 562,193.93 = 138,157.09 : x
  2. Step 2: Convert to fraction form
    374,648.33/562,193.93 = 138,157.09/x
  3. Step 3: Cross multiply
    374,648.33x = 562,193.93 × 138,157.09
  4. Step 4: Simplify right side
    374,648.33x = 77,671,076,324.37
  5. Step 5: Solve for x
    x = 77,671,076,324.37/374,648.33
  6. Step 6: Final answer
    x = 207,317.29

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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.