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Finding the Fourth Proportional to 199,627.79, 299,192.47 and 99,816.53

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Solution

The fourth proportional to 199,627.79, 299,192.47 and 99,816.53 is: 149,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,627.79 : 299,192.47 = 99,816.53 : x
  2. Step 2: Convert to fraction form
    199,627.79/299,192.47 = 99,816.53/x
  3. Step 3: Cross multiply
    199,627.79x = 299,192.47 × 99,816.53
  4. Step 4: Simplify right side
    199,627.79x = 29,864,352,412.03
  5. Step 5: Solve for x
    x = 29,864,352,412.03/199,627.79
  6. Step 6: Final answer
    x = 149,600.18

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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.