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Finding the Fourth Proportional to 172,598, 238,062.54 and 115,208.38

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Solution

The fourth proportional to 172,598, 238,062.54 and 115,208.38 is: 158,905.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,598 : 238,062.54 = 115,208.38 : x
  2. Step 2: Convert to fraction form
    172,598/238,062.54 = 115,208.38/x
  3. Step 3: Cross multiply
    172,598x = 238,062.54 × 115,208.38
  4. Step 4: Simplify right side
    172,598x = 27,426,799,572.09
  5. Step 5: Solve for x
    x = 27,426,799,572.09/172,598
  6. Step 6: Final answer
    x = 158,905.66

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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.