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Finding the Fourth Proportional to 172,955.25, 238,681.89 and 97,503.75

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Solution

The fourth proportional to 172,955.25, 238,681.89 and 97,503.75 is: 134,557.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,955.25 : 238,681.89 = 97,503.75 : x
  2. Step 2: Convert to fraction form
    172,955.25/238,681.89 = 97,503.75/x
  3. Step 3: Cross multiply
    172,955.25x = 238,681.89 × 97,503.75
  4. Step 4: Simplify right side
    172,955.25x = 23,272,379,332.09
  5. Step 5: Solve for x
    x = 23,272,379,332.09/172,955.25
  6. Step 6: Final answer
    x = 134,557.23

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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.