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Finding the Fourth Proportional to 154,149, 231,223.59 and 43,341

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Solution

The fourth proportional to 154,149, 231,223.59 and 43,341 is: 65,011.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,149 : 231,223.59 = 43,341 : x
  2. Step 2: Convert to fraction form
    154,149/231,223.59 = 43,341/x
  3. Step 3: Cross multiply
    154,149x = 231,223.59 × 43,341
  4. Step 4: Simplify right side
    154,149x = 10,021,461,614.19
  5. Step 5: Solve for x
    x = 10,021,461,614.19/154,149
  6. Step 6: Final answer
    x = 65,011.53

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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.