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Finding the Fourth Proportional to 153,469.71, 229,898.39 and 121,933.17

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Solution

The fourth proportional to 153,469.71, 229,898.39 and 121,933.17 is: 182,656.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,469.71 : 229,898.39 = 121,933.17 : x
  2. Step 2: Convert to fraction form
    153,469.71/229,898.39 = 121,933.17/x
  3. Step 3: Cross multiply
    153,469.71x = 229,898.39 × 121,933.17
  4. Step 4: Simplify right side
    153,469.71x = 28,032,238,860.93
  5. Step 5: Solve for x
    x = 28,032,238,860.93/153,469.71
  6. Step 6: Final answer
    x = 182,656.49

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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.