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Finding the Fourth Proportional to 172,542.18, 238,113.47 and 93,965.32

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Solution

The fourth proportional to 172,542.18, 238,113.47 and 93,965.32 is: 129,675.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,542.18 : 238,113.47 = 93,965.32 : x
  2. Step 2: Convert to fraction form
    172,542.18/238,113.47 = 93,965.32/x
  3. Step 3: Cross multiply
    172,542.18x = 238,113.47 × 93,965.32
  4. Step 4: Simplify right side
    172,542.18x = 22,374,407,339.75
  5. Step 5: Solve for x
    x = 22,374,407,339.75/172,542.18
  6. Step 6: Final answer
    x = 129,675.00

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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.