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Finding the Fourth Proportional to 144,920.40, 217,121.40 and 124,184.40

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Solution

The fourth proportional to 144,920.40, 217,121.40 and 124,184.40 is: 186,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,920.40 : 217,121.40 = 124,184.40 : x
  2. Step 2: Convert to fraction form
    144,920.40/217,121.40 = 124,184.40/x
  3. Step 3: Cross multiply
    144,920.40x = 217,121.40 × 124,184.40
  4. Step 4: Simplify right side
    144,920.40x = 26,963,090,786.16
  5. Step 5: Solve for x
    x = 26,963,090,786.16/144,920.40
  6. Step 6: Final answer
    x = 186,054.49

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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.