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Finding the Fourth Proportional to 606,351.80, 909,530.85 and 157,041.20

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Solution

The fourth proportional to 606,351.80, 909,530.85 and 157,041.20 is: 235,562.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,351.80 : 909,530.85 = 157,041.20 : x
  2. Step 2: Convert to fraction form
    606,351.80/909,530.85 = 157,041.20/x
  3. Step 3: Cross multiply
    606,351.80x = 909,530.85 × 157,041.20
  4. Step 4: Simplify right side
    606,351.80x = 142,833,816,121.02
  5. Step 5: Solve for x
    x = 142,833,816,121.02/606,351.80
  6. Step 6: Final answer
    x = 235,562.62

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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.