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Finding the Fourth Proportional to 310,995.53, 429,145.93 and 175,040.27

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Solution

The fourth proportional to 310,995.53, 429,145.93 and 175,040.27 is: 241,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,995.53 : 429,145.93 = 175,040.27 : x
  2. Step 2: Convert to fraction form
    310,995.53/429,145.93 = 175,040.27/x
  3. Step 3: Cross multiply
    310,995.53x = 429,145.93 × 175,040.27
  4. Step 4: Simplify right side
    310,995.53x = 75,117,819,456.60
  5. Step 5: Solve for x
    x = 75,117,819,456.60/310,995.53
  6. Step 6: Final answer
    x = 241,539.87

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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.