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Finding the Fourth Proportional to 308,985.68, 463,528.74 and 95,703.78

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Solution

The fourth proportional to 308,985.68, 463,528.74 and 95,703.78 is: 143,571.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,985.68 : 463,528.74 = 95,703.78 : x
  2. Step 2: Convert to fraction form
    308,985.68/463,528.74 = 95,703.78/x
  3. Step 3: Cross multiply
    308,985.68x = 463,528.74 × 95,703.78
  4. Step 4: Simplify right side
    308,985.68x = 44,361,452,556.64
  5. Step 5: Solve for x
    x = 44,361,452,556.64/308,985.68
  6. Step 6: Final answer
    x = 143,571.22

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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.