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Finding the Fourth Proportional to 350,868.61, 525,866.88 and 161,127.68

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Solution

The fourth proportional to 350,868.61, 525,866.88 and 161,127.68 is: 241,491.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,868.61 : 525,866.88 = 161,127.68 : x
  2. Step 2: Convert to fraction form
    350,868.61/525,866.88 = 161,127.68/x
  3. Step 3: Cross multiply
    350,868.61x = 525,866.88 × 161,127.68
  4. Step 4: Simplify right side
    350,868.61x = 84,731,711,296.13
  5. Step 5: Solve for x
    x = 84,731,711,296.13/350,868.61
  6. Step 6: Final answer
    x = 241,491.28

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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.