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Finding the Fourth Proportional to 350,144.70, 525,349.42 and 137,064.90

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Solution

The fourth proportional to 350,144.70, 525,349.42 and 137,064.90 is: 205,649.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,144.70 : 525,349.42 = 137,064.90 : x
  2. Step 2: Convert to fraction form
    350,144.70/525,349.42 = 137,064.90/x
  3. Step 3: Cross multiply
    350,144.70x = 525,349.42 × 137,064.90
  4. Step 4: Simplify right side
    350,144.70x = 72,006,965,717.36
  5. Step 5: Solve for x
    x = 72,006,965,717.36/350,144.70
  6. Step 6: Final answer
    x = 205,649.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.