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Finding the Fourth Proportional to 350,528.80, 525,663.60 and 113,879.20

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Solution

The fourth proportional to 350,528.80, 525,663.60 and 113,879.20 is: 170,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,528.80 : 525,663.60 = 113,879.20 : x
  2. Step 2: Convert to fraction form
    350,528.80/525,663.60 = 113,879.20/x
  3. Step 3: Cross multiply
    350,528.80x = 525,663.60 × 113,879.20
  4. Step 4: Simplify right side
    350,528.80x = 59,862,150,237.12
  5. Step 5: Solve for x
    x = 59,862,150,237.12/350,528.80
  6. Step 6: Final answer
    x = 170,776.70

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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.