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Finding the Fourth Proportional to 310,937.66, 429,060.88 and 174,969.24

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Solution

The fourth proportional to 310,937.66, 429,060.88 and 174,969.24 is: 241,438.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,937.66 : 429,060.88 = 174,969.24 : x
  2. Step 2: Convert to fraction form
    310,937.66/429,060.88 = 174,969.24/x
  3. Step 3: Cross multiply
    310,937.66x = 429,060.88 × 174,969.24
  4. Step 4: Simplify right side
    310,937.66x = 75,072,456,087.33
  5. Step 5: Solve for x
    x = 75,072,456,087.33/310,937.66
  6. Step 6: Final answer
    x = 241,438.93

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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.