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Finding the Fourth Proportional to 308,048.60, 461,727.30 and 130,525.40

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Solution

The fourth proportional to 308,048.60, 461,727.30 and 130,525.40 is: 195,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,048.60 : 461,727.30 = 130,525.40 : x
  2. Step 2: Convert to fraction form
    308,048.60/461,727.30 = 130,525.40/x
  3. Step 3: Cross multiply
    308,048.60x = 461,727.30 × 130,525.40
  4. Step 4: Simplify right side
    308,048.60x = 60,267,140,523.42
  5. Step 5: Solve for x
    x = 60,267,140,523.42/308,048.60
  6. Step 6: Final answer
    x = 195,641.66

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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.