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Finding the Fourth Proportional to 172,266.35, 237,792.51 and 100,669.64

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Solution

The fourth proportional to 172,266.35, 237,792.51 and 100,669.64 is: 138,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,266.35 : 237,792.51 = 100,669.64 : x
  2. Step 2: Convert to fraction form
    172,266.35/237,792.51 = 100,669.64/x
  3. Step 3: Cross multiply
    172,266.35x = 237,792.51 × 100,669.64
  4. Step 4: Simplify right side
    172,266.35x = 23,938,486,376.40
  5. Step 5: Solve for x
    x = 23,938,486,376.40/172,266.35
  6. Step 6: Final answer
    x = 138,962.06

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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.