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Finding the Fourth Proportional to 124,886.56, 172,346 and 68,301.60

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Solution

The fourth proportional to 124,886.56, 172,346 and 68,301.60 is: 94,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,886.56 : 172,346 = 68,301.60 : x
  2. Step 2: Convert to fraction form
    124,886.56/172,346 = 68,301.60/x
  3. Step 3: Cross multiply
    124,886.56x = 172,346 × 68,301.60
  4. Step 4: Simplify right side
    124,886.56x = 11,771,507,553.60
  5. Step 5: Solve for x
    x = 11,771,507,553.60/124,886.56
  6. Step 6: Final answer
    x = 94,257.60

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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.